ok, i'm asking alot of dumb questions. i am determined to cover every aspect of selling my product, down to the science of human behavior. so here is my question of the day: when meeting with a client for the first time, how do you address him? my standard greeting used to be, "sup dude, what you need?" but i'm thinking of changing that. let's just say the man's name is "john doe". would you knock on the door, extend your hand, and say, "hi john, i'm bob from meathead landscaping." or, would you address him as mister doe? " hi mr. doe, i'm bob from meathead landscaping." is there a difference in what u call him? meaning by his first name, or last? does it matter? keeping in mind i'm not a teenager, i'm probably about the same age, or a few years younger, as the clients i service.