I know what you mean, but I feel it more as a pressure than as something I ever give into. And while it's extremely awkward when I'm surrounded by a bunch of jocks or something, who have absolutely no artistic or emotional sensitivities whatsoever, I still don't try to mold myself into some testosterone-fueled version of myself when that's not me.
And it helps when I'm around my friends who are girls, and I can more easily see the clearly masculine nature I have. It's subtle things, like burping or scratching or eating like a pig. But then that same day we went to paint pottery, so...
I guess to answer your question, I just honestly don't care. I do what I do. And while I sometimes worry my sexual interest in men is beginning to show, almost everyone I know thinks I'm straight.
I'm not gay though. But I'm not bisexual.
It's more that I have a sexual interest in men, am turned off by sex with women, but get along well with women (even though I'm not interested in them), but in the end it really doesn't matter because I'm not healthy enough from a bunch of emotional scars that have left me unable to have a trusting relationship with someone.
Bisexual sounds better though.
Anyways, back to the point.
I could drive myself crazy trying to pin a label on what I am and how that defines my gender roles, but in the end I really don't care. I am who I am. I write, I love hockey, I play music, I love puppies and kittens and baby goats, I pick locks, and so forth and so forth.
Just worry about doing what you do. People will always find something to give you shit about, you could be the star quarterback on the High School football team and if you play World of Warcraft or (God forbid) Pokemon, that's your mark.
So stop trying to avoid having any marks and just enjoy playing the damn game lol
You're the one who has to live with your regrets about not enjoying those sorts of things, not them.