The ultimate way to show your love for your loud, pounding music taste. Controlled violence. The thing about the Mosh Pit is NOONE will take offence at you whacking them in the face...(I personally congradulate those that get a good shot in) there are different type of "pits" you can participate in, here are a few.
Closed Pit: Tight, hard to move and hard to breathe. A closed pit will usually happen during popular heavy songs like Slipknot - Duality or a S.O.A.D song.
Open Pit: Generally the worst/best you can pick a target and reach them, throw them across the floor punch them, barge them. There's enough room to just dive about punching everyone still causing little offece (Do be prepared to be hit back...a lot)
songs that will get open pits are the less popular but heavy ones.
Motograter music gathers a lot of open pits.
Circle Pit: The larger or stronger Moshers
or Metal heads
will run around in an empty circle punching those on the outside of the circle and pushing the runner infront until he either leaves or falls to be trodden on. these will happen on most slayer songs.
Slam-dancing Pits: Created by "Wooble" of Wolverhmapton fame. One hand will be behind back at all times (usually holding your beer) and the other one will be swinging side to side, whaloping other slam-dancers and headbanging to yourself.
Lamb Of God - Now You've Got Something To Die For
Is perfect to slam-dance to.
Piss-take Pits: Maetal heads will enjoy poking fun at the emo
music by doe-see-doeing and linking arms and swinging happily...Some even girly-mosh in where they rest their heads on tachothers shoulders and flail their arms madly. this is where you generally ignore themusic and do stupid things while the emo's dance.
Any phisical damage done in a mosh pit should be "handshaked" away no hard feelings, enjoy