The wave.

So all you riders out there, I need some help.

Now, I know that there's this rule about wavin' to other riders. Now what are the conditions of this rule? I know that there's no prejudice about the type of bike rider you're waving to. Do you wave to the guy stopped at a red light in the other direction? Someone who passes you? [Yes, people still pass me, remember I'm a newbie.] Do you vary your wave based on the type of bike rider you're waving to? I've noticed other riders waving at me, they never lift their hand above their elbow. Is that standard? expected? Is it odd if I do a Queen Mother wave to them? hehe.

Tell me, what are the rules?