(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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Ask what they're career interest
Tell an appropriate joke
Buy them lunch
Celebrate their work anniversary
Give them a challenging assignment
Don't sigh or roll your eyes the next them someone calls in