both are good to do, you must have knowledge how to do them well
if you dont have much time then you should participate in ICO, but if you have much time youre better trading
both have their advantages, but for now I prefer to trade because the market is decreasing.
the current condition is very good for the trade that is needed only to be patient waiting for the market to rise again. then choose a coin that is already strong on the market because you don't have to worry about prices not going up for example ETH an NEO. I am sure holding both coins will give a big profit if you are patient.