How to get his attention in cad cl.............?

so this guy sits behind me in cad. and hes SOO cute. and we've flirted A LITTLE, not a lot. just a little. and yesterday, i waited to walk with him, nd he kinda gave me this weird look. i dont know if it was a bad or good look. but it sure was weird. and he sits behind me, and talks to this other person during the period. so i dont know.... but hes so cute!!!!