Cryptocurrency trading is the buying and selling of cryptocurrencies through an exchange platform. To start trading cryptocurrency, you need to create an account on a cryptocurrency exchange that supports the currency pairings you want to trade, deposit funds into your account, and then place an order to buy or sell the desired currency pair. You can also use a cryptocurrency trading bot to automate the process. Finally, you should monitor the market and perform technical analysis to track your investments and make informed decisions when trading.