This is a fun game that's not hard and easy for a group of almost any size.

How to play:

Everyone sits in a circle. There is one person who is "it." There is an imaginary sign being passed around the circle. The person in the middle hast to catch the person who "has" the sign.

Everyone has their own "sign."  These signs can be simple or complicated, like a thumbs up or scraching your ear or something like that. 

The person who starts with the sign can pass it by doing another person's sign. The other person has to respond with his own sign to receive the "sign." This continues around the circle until the person in the middle figures out who has the sign.

An icebreaker that gets the group to move towards various parts of the room and to find others with shared interests and preferences, based on various interesting categories.

The first part of the game is the "Sorts" game.  You will throw out two contrasting choices and the group has to move either East or West of the room (e.g. "Do you prefer Target or Walmart?").  Then you throw out two more choices and have them move South and North.  That way, they are all having to move somewhere and can't get "lost" in the crowd.  Sorts that work well include:  movie or book; salty or sweet; dress up or casual; inside or outside; be on the stage performing or in the audience watching, etc.