Before the season even starts I get a copy of our game schedule. Then, looking at the games and taking what I know from past experience, I build a quick custom playlist for each game with hard music or hip-hop or whatever I think ill need for that games intensity/flow. It goes anywhere from 5-10 songs. When the actual game rolls along a few weeks or months later, its a just one less thing I need to worry about, and I can think back to when I made the list and what I was thinking of at the time.
Other then that, I make sure to talk to my shoes. They carry me through battle, so I gotta treat my babies right.
Usually eat some fruit, like a banana and an apple about 1 hour beforehand. Walk a little, then jog a bit to get the knees and ankles warmed up. Get my hands warmed up by doing some dribbling, then do some dynamic stretches (http://en.wikipedia.org/wiki/Dynamic_stretching).
Talk some trash to my teammates (we probably joke around a bit too much but meh), play a little bit of slow warm-up 1 on 1. Get a few catch and shoots in, and a few bank shots. Then some free throws.
Sometimes I'll size up the opposition while they're doing layup drills etc - see who's the most uncoordinated and worth gambling for steals against.
i pray before games, (i go into the washroom, since i do not want to bother anyone, and there are few muslims on my team) i pray not to get injured, to win, and to have a good game.
besides that i just jump up and down in the locker room, swing my arms to get loose. and i dont listen to music, thats just me, i need to concentrate on who my matchup is gonna be, or how im gonna score off set plays