#17: First-Name Basis
No one wants to be on a first-name basis with complete strangers. I can see why retail workers might not like customers calling them by their names. You don’t want to get too familiar with the enemy. Okay, maybe we took it too far; customers aren’t the enemy, but they aren’t your friends, either.
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That’s why some retail workers actually change the name on their name tags and use fake names. Do you really need every person in town (or at least, every person who shops at your store) to know your name? Some people might like that, but others prefer to keep their privacy and professional distance.