Some days, I just don't feel like playing my main character, so I hop onto an alt. Before long, I encounter some poor clothie of the opposite faction camping an elite quest mob hoping that someone else will show up and offer to group. Usually, the ground is speckled with skeletons.
Then the dance ensues. I salute, and the Mage waves. The Mage starts /saying things that I don't understand. I shrug. I wait for awhile, hoping that this will signal that I am willing to let the Mage go first. I'm hoping that my politeness infers that I will help.
Finally, I point at the Mage, then at the mob. Taking a leap of faith, the Mage tags it, and I run around behind to help, perhaps with a guildmate at my side.
After our parting farewells, I sit down to await a respawn. Personally, I think it would be much easier if I could say "I'm here to save the day!" or "I come in peace." Of course, there is some charm involved in finding a way to use our current emotes to communicate other messages, especially after Blizz added new ones in 2008.
How do you communicate to a player of the opposite faction messages that aren't directly built-in to emotes? Are you aching for a certain emote that would help you do this, or do you enjoy having to puzzle it out by piecing together existing ones?