Anonymous wrote:OP here again.
It sounds like I should err on the side of tipping a little but not a lot, but the Austrian poster has me curious too... is it like that in France or Italy or Spain where you don't leave the tip on the table?
Also, what about tour guides? Do I have to tip my guides?
If you do a credit card payment (less common in Italy) they almost always bring a handheld ship reading device to the table and you do the transaction right there. they don't leave a CC slip for you to sign. So leaving cash on the table would be odd.
Italy is much more cash based but often the service charge (or a bread charge or some other term) is already added to the bill and an additional amount is not expected.
Read the guidebooks for each country. Trip Advisor also has a tipping section. And agree with a PP that not following custom can be perceived as rude or odd so don't assume that tipping more than custom is the right thing to do.