Dining Out:
• Wkitstaff — 15—20 % ... the bill, excluding tax and expensive wine. Many restaurants automatically add a 10—15 % gratuity ... parties ... six or more, so check the menu. You can add another 5 % ... exceptional service.
Unit7. Restaurants
• Wine Steward/Sommelier — If they help you choose a bottle ... wine (or choose it... you), 10—20 % ... the wine bill only. Use discretion based ... how much service was provided (did he allow you to taste before you selected?) If the wine is very expensive, it's generally acceptable to cap your tip ... a reasonable amount (say, about $20), since you are tipping ... the service received. Leave cash or specify ... the credit card receipt which portion is ... the som- melier.
• Buffet Servers — $1—$2 ... person dining. Lean ... the higher end if they bring you drinks.
In the Lounge:
• Bartender/Cocktail Waitress — 10—15 % ... the total.... free drinks ... Las Vegas, $1—$2 ... round.