i only play with my friends... no rules needed, we know each other and what goes. i wouldn't do a trick where i know the other person(s) can't do it at all. if everyone is on the last letter and no one stuck a trick for about three rounds, it's anything goes to end it.
i dislike it when my mates don't even attempt tricks and just take the letter, but it happens, not too big of a deal.
i stopped playing skate with kids because they do shit like nollie laser flip first try, i'm like no, thanks.
i like to start with either fs shove, kickflip or sw fs 180