Mexican vs Brazilian differences?

[supertraveler]

i have been around mexican before. like three years ago. i lived there. i planning on either going back or skipping to brazil.

i don't like some things about mexicans like the rudeness of all the people there. yelling at you if you don't understand their spanish.

so what are the good and the bad and the ugly about brazilians. i want to know before i leave to go there. so i don't get put off guard.