Restaurant workers in Greece don't expect you to tip, though the restaurant may sometimes charge a service fee. That fee can function as a tip instead, though it may go to the restaurant instead of the server. If you want to see your waiter receive the tip, you're better off leaving coins with the bill.
How much is gratuity for tour guides?
Most etiquette experts suggest a tip of 10-20% of the cost of a tour for outdoor guides like ours. A typical gratuity on a full-day tour is $20-$40 per person, and on a half-day trip, $15-$20 per guest. Exceptional service often earns more: Did they go out of their way to show you something you're interested in?
Can you wear shorts in Athens Greece?
It is acceptable to wear shorts, whether you are a woman or a man. However, NEVER (and I do mean NEVER) wear shorts if you want to visit a church or monastery. Also, if you plan to do a walking tour of Athens, ditch the shorts and opt for a dress – if you are a woman – or a pair of long pants – if you are a man.