Try Altcoin Trade for me it has low risk, you don't need big capital and kinda addicting.. Been doing this for quiet a while...

What is Trading - Trading is a type of online business; 'Buy and Sell' or most professional call it 'Foreign Exchange'.
If you are familiar with FOREX, is easier to catch-up...

Where can we  trade? - There are many trading platform to choose like CCex, Poloniex, Bittrex etc...
I started trading @ CCex it is very user friendly a good start for newbies...