Chinese USA and uk tourist manners

Which tourists annoy the locals and why, which natives annoy the travellers and why, and how can we improve service? I can explain the problem with tipping. China and Singapore ban tipping. An employee can lose their job if they accept a tip which is seen as a bribe designed to enable the immoral tipper to jump the queue.  Staff are paid wages by the employer and not expected to take tips. If you try to tip it is also deemed as condescending and patronising, saying I'm a successful person and you are a poor struggling soul.

I'm a friendly person but I like the no tipping or 10 per cent optional charge. No delay at the end. No obligation to round up.