Hi Janis,
As a beginner, I suggest you to use the simplest ways to buy. As you get up to speed with cryptocurrencies, you can go to specialized platforms to trade on.
You can take into account this possibility http://virtapaymall.com/stripe/virtacoin-promotion-fund/ or you can buy VirtaMining shares http://virtapaymall.com/stripe/virtamining/.
If you really want to buy on exchange platforms (where you get to buy cheaper), I recommend C-Cex because you have the possibility of buying directly with dollars avoiding complications. And keep an eye on virtacoinworld.com, it is fresh but is going to be as strong as a rock in the near future. Additional info: the Bleutrade exchange website is used by the online wallet as a standard in terms of exchange rate BTC/VTA and VTA/BTC when we talking about the convertors (BTC2VTA and VTA2BTC), the most powerful wallet tools!
Your friend guided you here is definitely a good friend, but not good enough if he hasn't teach you how to buy but no worries, you can find here among our lovely community pleasant guys to guide you.
You are a newbie like me, but I'm less newbie than you cause I already know how to trade on exchanges. You land on the right place, hope you'll feel warm in the middle of our community. From the moment you become a holder of VTA, you are a VirtaCoiner and you can make the contribution to the development of our wonderful VirtaCoin. Welcome!
Cheers!