TIPPING CUSTOMS ARE NOT THE SAME ACROSS BORDERS. Plenty of places don’t have any custom of tipping whatsoever, while in other places — like the United States — it’s considered kind of a dick move not to tip. In order to keep yourself from looking like too much of a jerk, the people at Loving Apartments, an online short-term apartment hunting site, put together this infographic breaking down where you should leave a tip, and where you shouldn’t. 
Tipping Etiquette Worldwide Guide – An infographic by the team at Loving Apartments.