Being funny is a delicate dance. If you're feeling silly and playful, sometimes it's easy to cross the line of actual humor and become full-blown annoying. An easy way to avoid this is by paying attention to other people's reactions and body language. Are they withdrawing from you, complaining, or do they seem agitated by your behavior? Take a cue and back off. Your giddy mood isn't an excuse to disrespect other people's boundaries.