There is definitely a correct etiquette on how to be a polite gentleman (according to the Buddhist practice).
1. Walk like the wind. When you are walking, you should keep your chin
down whenever you are walking. The incorrect form of this is skipping, running,
not noticing where you are walking to (looking up as you walk, looking down as
you walk), and touching your clothes as you walk.
2. Stand like a pine. When you are standing, you should have your body relaxed while looking down. The tips of your feet should be about 8 inches apart and your palms down. It is wrong to have your hands up, arms folded, and your back slouching.
3. Sit like a bell. When sitting, notice your posture--having your back straight and mouth closed (but smiling). During meditation, hands should definitely be in the diamond position.
4. Lie like a bow. As you lie down to sleep, your feet should be relaxed with your left arm on top of your body. Lie on your right side. Before you fall asleep, don't think of anything, and when you wake up to your alarm clock ringing, get out of your bed immediately.