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Waiter
Gender-neutral Usage
Although traditionally 'waiter' refers to men, many use 'server' as a gender-neutral alternative. 
Waiter Etiquette
It's polite to get a waiter's attention without loud or impolite gestures, such as snapping fingers. 
Cultural Tipping
Tipping practices vary; in many countries, it's customary to tip waiters for good service. 