Good Manners:

The etiquette in Mexico for the public transport is don't put your bag on the sit behind you because the persons need sit.

    

The rules in the public transportation in Canada you should don't talk by cell phone aloud. The true is I'm not care if some one else speak in their cell phone. 

I thinks this rules the parents teach to their sons. May be the rules are the same in both countries.

You learn these rules in other countries when you used the transportation and coment mistakes.