Account on Exchange

[hspimenta]

How can I creat an account in a international exchange? I'm from Brazil. What exchange should I choose?

[darkangel11]

First of all you should decide if you want to trade with USD, EUR, any other fiat currency, or maybe no fiat currency, just other cryptos or maybe USD tokens.
Bitstamp and Coinbase allow you to trade USD and EUR, Bitfinex trades in USD, Yobit has USD and RUR. All these allow you to withdraw fiat.
Poloniex gives you a choice of various other cryptos and USD tokens same as Bittrex, but ultimately you have to withdraw a cryptocurrency not fiat.
The choice is huge.