Who are the world's best tippers?

In a TripAdvisor poll of more than 9,000 respondents across eight countries, 69 percent of German holidaymakers said they always leave a tip while traveling — out-tipping Americans, for whom tipping is ingrained in the service culture.

Rounding out the top five nationalities most likely to tip are Americans at 57 percent; Russians, 53 percent, Brazilians at 40 percent, and the French, 39 percent.

Among US respondents, meanwhile, helpful, friendly and polite service at both restaurants and hotels were cited as the primary reasons that drove Americans to tip.

The tipping rate also rises among US travelers to 59 percent when staff go the extra mile.

To educate themselves on the different tipping cultures around the world, the majority of American travelers said they consult travel guides (73 percent), online reviews (48 percent), and online forums (46 percent).

Here’s how countries rank when it comes to how often travelers from each country surveyed said they always tip on vacation:

1. Germans – 69%

2. Americans – 57%

3. Russians – 53%

4. Brazilians – 40%

5. French – 39%

6. Brits – 39%

7. Spanish – 36%

8. Italians – 23%