Okay, you have your empty wallet, lets fill it with that Ethereum you just purchased. There will be a send or withdraw section within the company website you purchased Ethereum from. Opening the withdraw or send section will prompt you to enter an address to send the Ethereum to. Your new wallet has an address unique to it that we need to use. Click the Metamask fox icon at the top right of your browser (you need to pin the plugin if it's not already showing here). The Metamask window will appear showing some useful information. We’re after the “Account” section shown towards the top middle, right under Ethereum Mainnet. Under “Account” there is the address you need, it will start in 0x… If you click on this, it will copy the address to your clipboard, allowing you to paste it back into the sending address from before.