>>212114175The best technique is to idly fish for marks. You play against somebody, preferably somebody complicit in the scheme, who beats you soundly. You pay him, hoping somebody saw you lose and pay, and they challenge you, a challenge to which you seem hesitant to accept. Playing against a mark, losing, then trying to up the stakes is risky, and there's a decent chance they'll catch on and walk away with their winnings. Like with most scams, you gently set out the bait and lure somebody in who thinks they're going to be the one taking you for a ride.