The best thing known to man. You can do it soo many different ways including:
The normal 5: just a normal hi 5
The normal 10: just a normal 2 handed hi 5
The side 5: were you make a clapping noise by slapping someone's hand in a handshake position.
The G. 5: were you do the side 5 and grab on pull together and slap there backs.
Tom: Woo! that shot was well cool.
Jack: Yeah it was. HI 5.
Tom: k ch (hi 5 sound)