Trading is a good way. Setup an account on an exchange and buy a little of a cryptocurrency you are interested in. Study the charts and try to buy in a dip of a popular coin. Once you bought a coin, set a sell price a bit higher enough to offset your trading fees and to make a small profit. Rinse and repeat until you grow your stack. Just remember to buy low and sell high. 
While trading might be 'good' it also isn't the way for you to make money without an insane amount of risk. I'd avoid that if you're just tryna make a few bucks here and there, cause you don't want to lose the entire pot.
I'd go along the lines of investing this money, working for more on the services portion of this site, loaning it (both on here, and on other websites such as exchanges), there is so much you can do but you're the person that controls how much you earn. If you work more, you're going to pull in more money.
Don't try the get rich quick stuff, nor the facuets. That shit is a waste of time.
Interesting