This might be the easiest communication strategy you will learn in a second language. Go ahead and start by greeting people in Portuguese when traveling to Brazil. Brazilians will appreciate your efforts in trying to speak their language, and help you along. Start by greeting the doorman at the hotel, salespeople, and taxi drivers. Use this list of common greetings:

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Greetings in Portuguese

There are many colloquial ways of saying “How are you?” in Brazilian Portuguese. From tudo jóia (literally “everything's a jewel”) to tudo legal meaning exactly what it appears, that everything is “legal,” so nothing bad at all. Also, when answering the question tudo bem? you can reply with tudo bom or vice versa.