OMG! I think we're more related than most siblings are!
Do I have hobbies/ interests? Sure... but I don't think it comes as naturally to me as, say, Fi types. But I LOVE to travel (especially the beach), I've always loved art (mostly pencil drawing), reading, movies, horse-back riding, video-games, computers, having a wild time with my friends (usually involving liquor), and just having fun and enjoying myself in general.
I LOVE LOVE LOVE traveling.
I used to be in art class, and pencil was my favorite!
Video games, check! (I have a gaming PC, a Wii, a DS Lite and an Xbox! For the record, I'm TERRIBLE at finishing games.)
Computers, check!
Wild time with friends and alcohol, check!
Having fun, check!
I was a mathematical statistics major, and believe it or not, I've always enjoyed that kind of thing. I like problem solving... they're like puzzles! Programming, although I only took 1 course, was really interesting to me too.
I also did Math/Stats!! There are so few girls in the field, I thought I was alone!
As long as I think I can solve it, I like problems! The ridiculous unatainable ones end up pissing me off. Altho if I have a fun team to work with it can still be fun.
And now I'm a programmer. I took 1/2 of a class in college (dropped at the midterm) and I hated it because the teacher was AWFUL. Now, however, I like it, altho I don't do it on the side...just to pay the bills.
I'm obsessed with zoos and aquariums, since I have an extreme empathy for animals. I try to go to the zoo in every city I go to. I treat my cat like she's my child. People seem to be amused when I interact with animals because it's a very gooey side of me.
Sitting at the zoo and watching the monkeys is soooo much fun

If I had a pet, it would be a cat. I've had fish before and they're boring after the first 2 weeks (when changing the water is a chore).
I'm kind of a sucky ISTP when it comes to sports/physical activities. I've always been pretty capable, I just never pursued anything due to lack of interest. I'd like to though. Skiing and horse-back riding is as far as I've gotten, and I've enjoyed both. When I was younger, my dad put me on a baseball team and basketball team. Baseball was too boring to me. I liked moving around on the basketball court, but I was too small. And didn't like playing by the rules. I was a point guard, and the concept of "fouling" was beyond me at the age of 11. I would just hurl my entire body at whoever had the ball. There was another point guard that was almost as bad as me. We were both like... 65 lbs. One time we hurled ourselves at this beast of a chick and made her cry.

Haha.. I know that's so bad, but it was kind of a cool feeling for a munchkin. So long story short, I sat out a lot. I keep telling myself I'm going to go pick up tennis or something. But I'm pretty violent. I'd probably throw my racket at my opponent if I got pissed.
I've always been decent at sports, but I never played much. I don't like the dependence that the whole team has on me. I did track for a bit and that was kinda fun. Recently I've been riding my bike for *some* source of exercise since I sit in a cube all day.
Baseball is the lamest sport ever. I LOVE watching football. Basketball and soccer are alright if I have a team to root for or a fun crowd to watch with.
I was a tomboy as a little girl. I have a vague memory of playing with two little boys that were my next door neighbors. Whenever we played house, I insisted on being the "husband" and the younger brother be the "wife."

He would complain so much, but I would hear nothing different. Hahaha.. I was a bully sometimes. Now? Eh, I wouldn't consider myself a tomboy, even though my friends say I have a "guy" laid-back attitude. I feel feminine enough, I'm just an ISTP... and don't have an extreme amount of interest in having what are stereotypically "girl thoughts" (although I'm not completely immune to them at all times). On average days, I dress low-key... jeans and a tee-shirt or tank top, hair up. But anytime I'm interacting more than one or two people, I like to look nice and feminine (Still jeans though

). I've always loved make-up (used to want to be a make-up artist, along with a million other professions). And playing with my hair is fun too. So, yeah, it's feminine, but it's more of an art form/skill to me.
I was DEFINITELY a tomboy. I got my first bit of makeup when I was 17, right before senior year of high school. It was all very neutral colors, very comfortable. My mom almost had a heart attack when she found out I used money on makeup because "you don't neeeeed any! you have great skin and great color!"....but I wanted it

I'm still a bit of a tomboy, but I wear my hair down for work, I blow it dry in the mornings, it's straight. I have to dress up a LITTLE for work, so I've expanded my wardrobe beyond tshirts and polos. I really dress pretty plainly for work tho...that is until someone bitched about the SEAMS on my pants...I dressed up like I was going to a night club for a week

I got tired of that...planning outfits takes way too long, especially when adhereing to dresscode *and* working with my wardrobe. I went back to plain comfy clothes. I wear Merrell shoes because they're super comfy and they fall within dresscode...certainly not fancy
As soon as I get home, the work clothes come off and I throw on pj pants and a tshirt. If I hang out with friends (say at someone's house), I'm probably in jeans and a tshirt (probably from shirt.woot.com). If we go out to a bar I'll put on a nicer shirt and throw some makeup on (if there's enough time I'll do a decent job, otherwise it's just mascara and lip gloss).
ok, now on to answering to the OP instead of responding to this post.
I love adrenaline rushes. Skydiving FTW. I've only done it once and I can't wait to do it again. Roller coasters ftw too! I also like water parks!
I like building Erector sets...but that hobby is expensive, so I've let up on it. I went through a phase last year when I couldn't stop buying them, tho. I kinda like legos. Sometimes they get boring. Lincoln logs were fun.
I said it before, but I've been biking a lot recently. I have a plain mountain bike that I use on a nice paved trail here. I really want a road bike, but those are expensive... Stupid expenses.
I'm pretty terrible at saving money in my checking account, so I have some of my paycheck go into a savings account automatically so I don't even see it. Out of sight, out of mind.
Ok, this sounds weird, but I like reading about serial killers. Their psychology is terribly interesting. I guess it's because it's so extreme. The way they were brought up and the way they've reacted to it by killing people is just so bizarre!
Aaaaaaaaaand someday I want to drive in a racecar and paraglide and surf and get good at snowboarding (I've never lived near mountains *and* snow).