Surprise kiss

When you wait for your bus, a cute girl comes to you, gives you a surprise kiss and whispers her name, then runs away with words "catch me if you can!". You are shocked at this event, but...something tells you to follow her? You ignore your original plans and decide to follow her, but she seems to be running away faster and faster on purpose. Is it a game? Is it a prank? No clue, but you just have to find out!