To all INFJs:
What do you think of ENTPs?
Don't they have all qualities/traits you're looking for?
Sure thing

. I think that type attracts me the most. I haven't met many I knew were ENTPs, though... but the ones I know: an instant connection!
How to approach an INFJ you ask? That's a difficult question... well, being original and weird is a good way to catch our attention... but it must be genuine. I hate people who try to please me too much and as such are a little fake. I like the weird people, so trying to please me is actually a good way to annoy me. Just be yourself, and be funny and playful.
Oh, about the method of approaching... I dunno, it depends on how you know each other and so on. If you regularly see the INFJ, you should try to somehow, magically, build that connection there first. It shouldn't be that hard for these two types. After that it's kind of easy to continue.
At college, a good friend of mine was an ENTP. He was in the same class I was. After a week or so he didn't still even know my name, but I knew a lot about him. I just immediately knew that he was a great person and I was somehow supposed to forge a friendship with him. One day I approached him in a shy way, being introverted and all, and said I'd like to get to know him... (yes, it was awkward

). He immediately took notion of me and ever since we've been like best friends.
Now, if only could I find more ENTPS...