But, if a scheme or exchange is presented as highly-profitable and low-risk, ask yourself why such a great opportunity is being shared with the public. Next, higher volumes on a cryptocurrency exchange are an indication that it is widely trusted by a lot of users. Ideally you should deposit on an exchange, make your trade, and then withdrawal the coins. Here is what the main trading interface looks like:. Do NOT get comfortable leaving your cryptocurrency on an exchange. In , he helped lead a push to get the Bitcoin network to expand so it could handle more transactions.