(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.
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Make a list, memorize, and recite from memory 1 hour later
Play "Add 3 minus 7" game (google for rules)
Take a walk on your lunch break
Learn a new word and use it it 5x
Listen to classical music while you work
Watch a documentary
Complete 1 crossword puzzle
Arrange 3 toothpicks into the #9 (w/o bending or breaking them)
Play a virtual game (Words with Friends, chess, etc.)