Personally: go in the changing rooms and relax for a while if we're away. If at home, help the groundsman when he inevitably shouts for it (and as the youngest regular player on the club, i'm usually shoved out the door to go do whatever it is he's struggling with), move between the club and the changing rooms depending on space available in both, possibly go for a pint if the delay is long enough for me to get away with it (we're talking downpour causing 2/3 hour delays for this one), chat to spectators if they come up to talk to me.
Rest of the team: Smoke, a lot. Talk about football or sports in general, wander aimlessly about the place, complain about the weather ruining our chance of winning (even when we're being hammered by the opposition). If away, do all of the above, with the exception of smoking, in the away changing rooms.
2nd team opening left arm bowler: Smoke, patch up dodgy knee, go for a pint (almost inevitable regardless of weather conditions if we're batting), shout at me for my latest dropped catch from his bowling.
Club treasurer: Moan about slow batting by our team, smoke, tend bar.