Nothing much you just have to go for any coin that you think it’s really good. If you’re going to be a day trader you’re going to be steady looking out for the good coins in the market and trading them to make profit. Unless you’re not really a day trader and what you just want to do is to buy and hold for long.

Even at that you will still have to do your research for coins that are more likely to bring you profit when you hold them for as long as you can. Bitcoin is one that hardly disappoints, but all can still go down , and you have to know when you should be buying, wrong timing is very bad. You can see those that bought at the last ATH are yet to see the price go any reasonable length. So it’s good to be careful.