When you eat out in Canada, in restaurants in particular, you must wait to be seated by your Host. Do not go to your table beforehand. Putting your elbows on the table will also be considered “bad mannered”, so be cautious.
It is also accepted that you should always tip around 15% to 20% of the bill to your waitron. If you do not, it means you have been exceptionally unhappy with the food or/and service of the restaurant.