Tip culture doesn't really exist here in Portugal, but I like to tip, like you said, when the service is better than I expected.

0xbitcoiner

In situations where someone can and does go above and beyond what's expected for the service, I'm happy to tip and I do tip more than average in those cases.

For routine services, though, I hate the expectation to pay more than was quoted to me. Oftentimes, I don't tip at all in those situations.

science

econ

Why tipping keeps rising and may not improve service

I also mostly don't like tipping. 

In situations where someone can and does go above and beyond what's expected for the service, I'm happy to tip and I do tip more than average in those cases.

For routine services, though, I hate the expectation to pay more than was quoted to me. Oftentimes, I don't tip at all in those situations.