Today my ex was only troubling me playfully, taking out my shoe lace, pinching my foot and staring me down. All of my friends keep telling me about it. What does this mean? Help!

Hun, guys can be a mystery some times... But it does sound like he is trying to get your attention for some reason. Most likely because he is into you. If you straight up ask him, he might deny it though (sounds like he's a little shy at telling you so far), so maybe take it slowly and see what happens!