The Videos that are on You Tube, are cool. Often people play the Ruy Lopez, and so the videos on an opening that people often use, are cool. So in order to freak people out, I try my best to do someting different during the game in the very early stages of the game especially with players rated higher than me.
This will either help me lose quicker or freak the guy or woman so much that they lose out of shock.
Sorry, I can't give examples, but in general, I just try to do unexpected moves. and remind myslef, it is just a game.