(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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A customer gives >10% tip.
A customer gives <20% tip
A customer looks at a product for 30 seconds straight.
A customer comes up and asks for a refund
Someone you know comes to the store.
You get a really early shift.
Someone drinks multiple cups of coffee
One of your co-workers talks about going on vacation.