Lol. Of course you can man! As long as the amount being bought is bugger than the fees, you should be good. Amd good thing you chose etherium. Because it has quite low transaction fees. And that would really emable you to buy smaller fractions of the coin. But you have to be careful in buying. Make sure that the place where you are buying is legitimate and secure. Also, be sure with the type of wallet you will be using to prevent any mishaps.

Goodluck man.