presentation: formally making a person known to another or to the public
abstraction: a general concept formed by extracting common features from specific examples
pisha paysha: (Yiddish) a card game for two players one of whom is usually a child; the deck is place face down with one card face upward; players draw from the deck alternately hoping to build up or down from the open card; the player with the fewest cards when the deck is exhausted is the winner