It's like meeting a girl. First thing that going to draw you in is the quality of animal. Just like seeing her across the room, eye candy makes you go, hey I'll check this out. Next I think would be price, the eye candy should match the price, too high you don't get my money, too low and I'm wondering "is this too good to be true?". Then there is a Q and A session, however when dealing with snakes it is not appropriate to ask them to dinner and a movie. Once the sale is agreed upon, transaction should be smooth and any problems dealt with fairly as possible. I should not see any mites or other bugs on the snake after the transaction. Any scars, deformities, and apparent mental problems should be brought up before the transaction is complete, I would like to know what I am committing to. If both parties are happy after transaction is complete, they may leave their contact information so they can call to do business again.