If you are invited to a Brazilian's house:
Arrive at least 30 minutes late if the invitation is for dinner.
Arrive up to an hour late for a party or large gathering.
Brazilians dress with a flair and judge others on their appearance. Casual dress is more formal than in many other countries. Always dress elegantly and err on the side of over-dressing rather than under- dressing.
If you did not bring a gift to the hostess, flowers the next day are always appreciated.