“Why are you touching me?” – Anna’s story

I am waiting in line at the grocery store and at first this guy touches my shoulder to say “excuse me” to apparently get out of the way of someone that is passing by. First, when people do this I find it completely unnecessary to touch me. Then he touches me again as he points to his friend, so as to suggest his friend as a prospect for me, raising his eyebrows and saying “eh?! eh?!” I felt really violated. I somehow was able to say “why are you touching me?” as he walked away, but still feel gross.