(pack pre-opening game)
Find someone to sign or initial the squares below.
Each person can sign your sheet only once, and you can't sign your own.
Get five in a row vertically, horizontally, or diagonally for a bingo.
When you have a bingo, shout "Bingo!"
Then continue getting more people to sign. How many more bingos can you get?
As people arrive, give a copy of this bingo with the instructions above. Note who got the first bingo. During the meeting recognize that person as well as the one who has the most bingos and the person who got the most squares filled.