Something weird happened today ...?

I like this boy and we are kinda close we go out at night wiv other people and text and sometimes talk , he dsnt seem to talk much in school though he mainly talks to me when we are out and at collage and stuff , but because his mate likes me i dunno if he just follows him but today in maths , he sits 1 seat away from my friend and he was asking her what to do then i turned round and did a little laugh thing cause he was leaning over to try get the answers from her and he smiled and looked at me then went totally RED and he kept looking and smiling but he was really really red , and then at break he came round wiv hiss mates where me and my mates hang bout and i thought it was a little straight when we are out at night he cuddles me and puts his arm round me and jokess but wiv me and wanted to walk wiv me on the way home from collage ?? and there is more that he does... but .. how can i tell if he likes me ?