Randumbz wrote:i try talking to people, but for some reason they don't wanna talk to me. they reply and then talk to everybody else around them except me
That sucks. I have that happen to me from time to time as well.
I'm not sure if you'll be able to be this aware of yourself, but sometimes you might be saying something that people can't quite branch off of, something that doesn't really move the discussion along, if you know what I mean. An example:
A: I bought a whole box of bananas this morning!
B: Wow, that's great, where'd you get them from?
A: The grocery store around the corner from me!
B: I don't have a grocery store around my corner.
Obviously a stupid example, but there's not much that A can really say to respond to B's statement in this conversation. Try asking questions instead of making statements (though don't rely on that as your only conversation tool, it can make you seem ditzy if you get too reliant on it). Give people compliments- "Your presentation turned out really awesome!" or "That's a really good idea, do you mind if I use it too?" People like compliments and will generally respond positively, although you are in high school, and I found that high schoolers can be remarkably bad at accepting compliments some of the time... ugh, this advice isn't sounding so good, is it?

But I'll second also what everyone else has been saying- it will get better as school goes on. And hey, you've got those 4 friends- that's a pretty good number. See if you can maybe throw a party or something and ask your friends to invite other friends as well, so you can all get to know some more people. Joining clubs is good because then you are automatically in a group with people who share your interests.
As you grow older, you'll become more confident in your ability to speak to strangers/acquaintances. I used to be terrified of going up to the cash register, ordering food at places, calling people on the phone, or interacting in anyway with strangers outside of absolute necessity. Especially since graduating high school, I've loosened up a lot, and I think quite a bit of it is due to the fact that I don't care so much anymore if others will think I'm weird or not. (I assume they're going to, since a plurality of those I meet seem to, and just use that to my advantage- hell, a good amount of it just for fun, like an act practically.)
Hang in there, friend. Just continue to be polite and friendly when you feel able to do so, and treat your pals well. You want to be the guy that people enjoy talking to and look forward to seeing- just tell yourself that you
will be that guy, and you might find you'll start acting like him, and being treated like him, pretty soon. And remember that friendships can be hard to build, but you'll soon meet people who get along with you just fine.