I was at a party and when we took pictures, a guy that I have been looking at the whole night., placed his hand on my lower back! Then after that, I constantly catch him looking at me? What does this mean?
I agree with jrose, guys will not touch girls like that unless they like them. He's interested in you. If he keeps giving you eye contact and making excuses to touch you he is definitely interested. If his pupils dilate when he looks at you that is also an indication but it can be difficult to spot. hope this helps ^^