Q What does a kicker decide the winner means?
When a player has a high card and a single pair, and both players have the same hand strength at the completion of the hand, a kicker card poker role is being played. Let's pretend you're playing a poker game of Texas Hold’em with the board showing K T 8 5 2 where one player is holding K Q and the another, K J. As both players have a king, it acts as a tie breaker, and we'll see the second highest poker kicker high card as per Poker Kicker rules, and in this case, K Q wins the pot because it has a better kicker.