Decentralised Exchanges will soon become the cornerstone of cryptocurrencies.
Or else, price suppression, market manipulation, government oversight, and corruption are guaranteed.
How to buy NVO:
Get XCP on an exchange first ;
Bittrex, Poloniex or Tux Exchange
XCP runs on a Bitcoin address;
1) create a Couterparty wallet,
2) send a little BTC to the address (just enough for the transaction fees)
3) send your XCP to the same address
4) trade your XCP to NVST.
Just to comment on this... Bittrex is your best bet. Poloniex is getting tons of complaints for disappearing balances, month long withdrawal waits, etc. Tux Exchange also has reports of Withdrawals taking upwards of 2 weeks.
Bittrex or bust for XCP.