foot play and a wink

I'm sitting at my normalish spot on the first floor of the library and as I get really into my study guide I feel a small tap on my foot. Quickly, I retracted my feet from under the table. You see, I really don't like people touching my feet in any way, shape, or form. A couple of minutes passed and I felt it again, but this time more foot. It hit me, the person infront of me decided to not move his feet but play footsies, or so it seemed. I freaked out everytime this person touched my feet. 20 min later he stood up, smiled, winked and walked away. I didn't know if I should feel flattered or creeped out. My poor feet!