if a girl likes you:She will flirt with you, play hard to get, twirl her hair ect.
if a boy likes you:He will flirt with you, chat you up, talk to you ect.
if I like you:I will stalk you from a distance, make note of everyone you talk to (your friends, family ect.), I will get to know your interests and never, ever will I attempt to make a move. Then I will proceed to buy cats.
Soon, we'll be updating the look and feel of this theme. Read about the changes here. You can easily turn off this notification in the theme customization panel.