Be ready when it is your turn. Take one practice swing, then hit the ball. Move off the green when play is over.
When looking for a lost ball, let others play through.
Keep an eye on every shot played by your group.
Pick up and start again on the next hole if you're a new player taking too long.
Replace divots, repair ball marks on the greens, rake bunkers. Don't make spike marks on the green.
Don't litter. Keep all carts away from the green.
Leave your cellphone in the car. Be quiet on the tees, in the fairways, and on the greens.
Be invisible (including your shadow) when someone is hitting.
Step around the path of other players' putts.
Let faster groups play through. If there is no room to move ahead, don't request to play through.
Jim Corbett, aka Mr. Golf Etiquette, is based in Seattle. Check out his Web site at www.mrgolf.com.