Dealers are human, so mistakes are common. If the player notices the dealer making a mistake, then politely stop them right
away and notify them of the mistake. There is no proper way to notify the dealer of a mistake, other than to be polite. There
is no reason for anyone to get mad. Unless, of course, if the player touched or grabbed the dealer. Then the dealer would definitely
get mad. The dealer will call over their floorman and notify him of the mistake. It is the floorman’s duties to correct the mistake,
not the dealer’s. The dealer would get in trouble if they tried to correct their own mistake. If there is an argument, then you can
ask for the cameras to be reviewed.