I personally would like to welcome Nevergiveup to the forum who said he's interested in learning about craps.
Please learn etiquette at the craps table. Watch your hands, bet when the dice are with the stickman, don't crowd the shooter and PLEASE wait till a new comeout roll before throwing your money or chips on the table.
Craps is a sensitive game and if you enter a hot roll at the wrong time and by coincidence things go bad YOU will be blamed and not the shooter/dice. Yes it sounds crazy but it's true.
And while there are a lot of superstitions in craps it's better to accept them than to fight them. If you accept them you'll have more enjoyment at the table. If you fight the superstitions it could end up in a real fight.
And what isn't based on superstition is just plain courtesy. It's never bad to be courteous. Give the shooter room, give him time. If the shooter is a quiet guy don't yell, but if the shooter is loud and verbal show him your support as loudly as you like.
And be polite to the dealers. Say please and thank you.