My best idea ever. Please read, I know it hurts.
EDIT: Apologies for the slight fading of the ink. I'm not really supposed to draw on my hands in pen. So i could only do it once, at the beginning of the day.
Instructions:
1: Write 'THE GAME' sideways on your hand.
2: Go to a public place full of people you know.
3: If you see someone walking, make it so you're walking face to face, and make sure the hand with the writing is closest to them.
4: As they near, hold out you hand, and say 'HI5!'
5: Be ready to yank away your hand when they see, and, if necessary, run.
Instructions:
1A: If used in conjunction with HI5 game, draw this on the same hand, and make sure you conceal your knuckles. Do this as a follow up to the HI5. Timing is important.
1: Make sure they don't see the dark blotches on your hand.
2: Hold it up in a way that they can see it.
3: When they go to tap you, watch them get hammered.
Alternately, you can to a handshake, when the shake, grab and twist their had so your knuckles are on top. When they look to see what the hell you're doing, ta-da.
Just be careful that they don't put their thumb over the G.
EDIT: Yes, those are my whimpy-ass hands.
EDIT: Just something I'm working on. Redesigning my fursona (my friend told me that's what it was)