Invite Brazilian for lunch/ dinner but ask them, don't just take them to eat pizza, hot dog or hamburgers. We love it but those are more like snacks for us. Usually, the words lunch and dinner imply more like a meal with rice, meat/chicken, beans, etc.
--P.Oliveira
10
When invited to a house, eat whatever they offer. It's usually considered disrespectful if you don't accept what they generously offer. Unless you have a serious food restriction. In that case, inform the host.
--Olive tree
10
Eat all your food with knife and fork, instead of with your hands. If you do eat without knife/fork (like streetfood), hold it with a napkin!
--Emiliooo
10
Feijoada. Most locals love it. Foreigners either love it or hate it. Worth a try unless you don't eat pork (some places do serve vegetarian feijoada, depending on where you go) or don't tolerate beans. These are the 2 main ingredients.
--Emilia
