1). You can do Hotel workers
2). Taxi drivers about 15 to 20 percent tip
3). A Salon and Spa workers: Its a rule of thumbs is if someone touching your body, tip generously. For one that person has to deal with gross toenails or back pimples. Give at least 15 to 20 percent to your manicurist, massages therapist, and waxing specialist.
4) A Bartender At least a dollar per drink is the minimum, but if your on a tab, you can do the usual 15 to 20 percent. If you’re taking up bar space for hours but not drinking much, or if your bartender comps you a free drink, throw them a little extra. The same goes for complicated cocktails.
5) Tipping 15 percent of the pre-tax bill (20 percent for good service) at restaurants is standard, but depending on where you live, a larger tip might be in order.
Hope this helps :)