Trading in yobit is different with day trading of bitcoin in the exchanges.In yobit you can do altcoins trading where you buy and sell altcoins with bitcoins whereas day trading is buying and selling bitcoins only with price is fiat currency and best place for that is localbitcoins.
Well i think he wanted to know about altcoin trading. So thing you have to do is to check prices of some altcoins you want, and when one drops just buy some of it