The Starter
The player on the dealer's left cuts the undealt portion of the deck (leaving at least 4 cards), and the dealer reveals the top card, called the "starter", placing it on top of the deck face up. (It is illegal to peek at any other cards in the deck during this process.) If this card is a Jack, the dealer scores two points for "his heels", also known as "his nibs", or simply "nibs". The game can end on a cut of a Jack for the dealer.
Read more about this topic: Cribbage (rules)