As a general guideline, side bets in blackjack have high house edges and should be avoided. But if you insist on trying your luck, at least stick to the side bets that have the lowest house edge. Better yet, learn a counting system that is specific to the side bet and that can give you an edge.
noun. 1. : a bet made with a player other than a house that customarily books all bets or other than with the shooter (as in craps) 2. : a bet made by the shooter in craps on any event other than the outcome of his center bets.