 Players may also place a stack of chips for a bet as usual, but leave the top chip off-center and announce "on top for the dealers".The dealer's portion is often called a "toke" bet, which comes from the practice of using $1 slot machine tokens to place dealer bets in some casinos.In some cases, players may also tip each other, for example as a show of gratitude to the thrower for a roll on which they win a substantial bet.