depending on the culture of the company Interruption might be common and is thought to reflect engagement and enthusiasm -  it should not be interpreted as disrespectful or disruptive.

carioca business is communal in character and visitors will notice that cariocas will not do anything that could embarrass an individual, such as outward demonstrations of impatience or frustration, or openly criticizing someone in a meeting - in these instances, both parties appear weak - Similarly, direct confrontations should be avoided, and any negative remarks should be preceded or followed by a positive comment.

Business cards are often exchanged and are a fantastic way to make a lasting impression, especially printed in both English and portuguese - it is advisable to present these bi-lingual cards with the portuguese side face up to show respect to the recipient's native tongue.