When someone's behavior rubs you the wrong way today, the friction will be surprisingly stimulating! You're still in a great frame of mind for disagreements, so go with it. Get into a conversation someone who usually annoys you -- and then challenge them to change your mind. Put them to the test and see what they have to offer. So what if you make them squirm a little bit by calling their bluff? This day of fun conflict will keep you laughing and learning.