First Kiss

So the thing is, for a while now I have this huuuuge crush on this guy, but he's cute and I'm shy and I have no connexion whatsoever to him. But he's the kind of really sweet and cute and kind person, you know ? like somehow if you go talk to him he won't be rude and will keep talking with you somehow. But even so.... It's been a while since I'm in love with him (I got it rlyyyyy bad) and there's only a few month until we'll quit high school but I rly want to be in touch with him bc I rly don't want to give up on him. The few times we talked were nice and I know we would at least be friend bc we're not rly different you see ? we just need to talk a bit.... But it's rly hard for me to go talk to him, we don't rly hang out with the same people and he's rarely alone on his own. I thought about talking to him on facebook but like what do I say ???
I mean, my problem is, how do you go and talk to people that aren't your friend ? How do you make friend with people ? What should I say to start a conversation with him ? Or maybe, should I directly go to him and tell him I like him ? Wouldn't it be weird ??

This question has been in my mind for quite awhile now. Well, most straight guys i know irl who tried reading yaoi were grossed out and said that it was too much for them. And me (a hetero woman) is fine reading yuri (i also read smut and stuff lol). Not just me tho, i am sure there are many straight women out there who also read yuri. My point is, if women can do it why can't men too? Is there a particular reason? Can someone explain it to me please?