Firstly, I would like to say a very big welcome to you. Its nice to have you here with us and hope you learn a lot.
Back to your question, Crypto Trading is the act of buying crypto coins or cryptocurrency at a low price and selling it at a high price. Basically, that will be your gain.
Reading the comments here, you would have got enlightened on what it entails, I just need to add few concerning points.
* When trading, please try not to be greedy, this is the major problem some of us traders face. The inability to control it.
* Before buying, try to monitor the coin well, to know if it is the appropriate time to buy and also to sell or if the coin has the potential of making profits.
*As you trade, if you are not conversant in gambling, please don't, especially not with your gain. I know few people whom lost all their profit on gambling.
If you need to know more, there are lots of information on the web that can enlighten your knowledge on it.
Happy trading