This gesture you make in a restaurant reveals your social class without you even realizing it.

Communication with staff: the tone that makes all the difference.
Speaking too loudly, calling a server abruptly, or using “waiter” can dampen the atmosphere. Eye contact, a smile, or a discreet nod is often enough.
Systematically refusing suggestions is also a common reflex: some people think we’re trying to get them to order more, when often it’s simply advice on the ideal portion size or cooking method. Saying “I’ll see” or “thank you for the suggestion” allows you to remain open without making a commitment.

Entering a restaurant: that first gesture that says a lot