Thank you for your help.
Brazil is a very large country with a large and highly diverse population.
To assume that there is a single 'Brazilian style' of negotiation is unfair to the many individuals who call themselves Brazilians. Rather than entering into negotiations with people or companies from any particular country assuming that 'they all act alike', it is crucial to ask questions about the specific parties with whom you'll be negotiating. Find other people who have worked with them and ask for their experience and impressions. More important, consider the wide variety of interests and styles that may 'drive' your negotiation partners before you begin the process. The best way to avoid making mistakes with any new person or group with whom you are negotiating is to ask them to let you know what they find troublesome or offensive.