well
everyday (well nearly) we talk on msn x
but i dont speak to him in school cos i never see him except in my geography class.. but he just never speaks to me in school :S we just say hi

and i know he used to like me cos i can see in his face and his friend told me he didd
but yeah
i thiiiiink i like him now, and whenever we talk , there is always this AWKWARD silence

i dont know what to say?!
this is how our convo goes...
Him: Heyy

Me: heyy
Me: you alrite?
Him: yeahh

you
Me: yupp

Him: wuu2
Me: nm "blahblah"
Him: Kool , nm

Me: how was ur day
Him: alrite yours??

Me: alrite=]]
then its like we say sumfin like oh im bored or somethin
then the dreadful moment comes
what can i say to him that would make it all casual????