How should I tip in Canada?

I tip myself according to the service of the waiter. There is no limit. But don't go below 10% unless you have cockroaches in your bowl.

If it is a student, there is no salary. 10% is acceptable. Up to 15%, 20% is optional. If you go to a very advanced western restaurant. Start with 20%.

Generally speaking, tipping is not mandatory, but there are common sense and habits. I usually give 15%. If the waiter has a bad attitude and asks for it several times, it will reduce consumption. If the waiter is good. Will pay more.