If you are interested I made a tutorial of how it works the Waves Platform Lite Client.
You will know all the steps : from the creation of the wallet till how to trade on Dex(decentralized exchange) of Waves Platform
You can take a look here:
Lite Client Waves Platform Tutorial
Have a nice time!
Thank you for the guide.
A question:
Do I need to have some waves in my wallet before receiving the MGO tokens to have them available for trades?
Just for receiving tokens you do not need any waves sitting in your wallet.
For dex trading you need at least 0.003 for that is a trading fee.
Also you need a small amount for transferring tokens out of the wallet.
For start you can pick some waves in faucet here: http://wavesplatformfaucet.com/