What other tips do you know?

Thanks for sharing this discussion. Well yes u are correct, while negotiating, we have to deliberately talk slowly and firmly in order to assure the people that we have a fair deal of mind that can take firm decisions for the betterment of others. It will not indicate our over confidence in the same and will create a good impression. What say?

Uma das maneiras que você pode usar é olhar nos olhos. Nunca deixe de olhar nos olhos da pessoa ao negociar um produto, um serviço, seja lá qual for. Você verá que transmitirá à pessoa uma maior confiança e lhe dará mais segurança. Pode ter certeza que funciona mesmo! Vai essa dica para você!

Make sure to always be polite, and have a firm hand shake. It shows you're confident in yourself, and besides, nobody likes a limp handshake. Try and maintain eye contact as much as you can while talking with them as well, it's polite and also shows that you're confident. But don't stare, just make an effort to meet their eye every so often when you are talking to them.

Hi sergedan! I think that is a good suggestion. When you speak too fast, most likely you will not be understood by your client causing him to decline whatever offer you might have. Also, when you speak you should look directly at the eyes of your client so that he will be convince that you are serious on your negotiation.