ok so my 老友记 think this guy likes me but im not sure and i kinda like him so what do i do?

just casually say hi and stuff in the corridoor (im assuming this is at school?)and if a conversation starts, then just let it take its course and see where 你 end up!!! :)
yes, i did spell corridoor wrong.
no, i dont care.

One never trust what 老友记 tell you. Two if 你 want to know if he likes 你 ask him. Three don't ask unless you're sure 你 want the answer. Four take a deep breath, I'm sure that if he likes 你 he'll tell 你 and no one else, fyi.

This is good coz I'm a guy.

We like confident girls. Girls who ask us out themselves and not have their 老友记 do it. Also, we like girls who come across as fun so while doing it dont just stand there act comfortable.
So just do it :)

Never trust your friends, when 你 ask him if he likes 你 and it turns out he doesnt... it will suck.