In recent years, with the development of China, tipping has become more and more common, and service personnel in some industries may expect to receive tips from foreign guests.
In China, most places have strict no-tipping rules, including most Chinese hotels, restaurants, massage parlors, barbershops, etc. However, in high-end hotels and restaurants that serve western tourists, tips are usually required, but not required. At these high-end venues, waiters and concierges may be used to accept tips from western tourists and expect them to do so. However, if you don't tip or just tip a little, you won't offend the server.
As for tax drivers, they are not allowed to accept tips, and they do not want to.
For hairdressers, unless you're in a western-style salon like Tony and guy, who might expect a tip (they might hire a western stylist), you don't need to tip your barber at all.
In China, foreign tour guides and drivers charge tips to tourists. In fact, tour guides and drivers who serve foreign tourists may rely heavily on tips for their general income (probably like western waiters) because they always serve with foreigners, so they expect tips from tourists.
In the high end hotels and restaurants, it’s appropriated to tip the bellhops, concierges or waiters from $1 to $10 according to their service and the amount of your bill.As for the private tour with us, the guides and drivers are supposed to be tipped.