1. The document describes several popular games and plays that Polish children enjoy that help with integration and getting to know peers.
2. The games include "Hedgehog" where one child is in the middle and chooses another to join, "Who is Under the Blanket?" where one child hides under a blanket, and "Who Are You Rolling Your Ball To?" where children roll a ball to each other.
3. Other games involve introducing yourself to a puppet, inviting others to join an empty spot in a circle, and a song game where children go around a circle inviting each other in. The games help children get to know each other in a fun atmosphere.