Based on what BlakeBenz has said so far, I think this thread promises to be excellent. Let's keep it coming.
Mutual respect counts for so very much. In my limited experience – admittedly only 4 occasions, and those focused on muscle worship – I have approached the provider with respect, admiration, conversation, sincere interest and, I would hope, with some good humor. Things can backfire, of course, and maybe I've just been lucky with my choices, but everything BlakeBenz wrote is what we should strive for, both client and provider alike.