Tips??
Speak when people walk up to your table. "If theres anything you want to see just let me know" and leave it at that.
Wear comfortable shoes. you should be standing behind your table 99% of the time.
Have your bottom price on animals so there's no calculations there is just a quick yes or no when haggling. Example if you have a Pied male for $350.00 and you know you wont take less than $290.00 when someone offers you $300.00 bag that bad boy up.
Dress semi professional, most soccer moms don't wont their kids buying a snake to start with but you're not helping your sale if you look like one of the Rocky Horror picture show cast.
Take animals to sell and ones you're willing to trade. You'd be surprise how much before and after trading goes on between breeders.
Remember peoples faces and what they were interested in. It makes and impression when someone comes back for a second look if you can sell them on a specific snake that they have been mulling over.