Create a wallet address

Click this link to open the wallet. Create a wallet address here

Click the 'Create identity' button

Enter an arbitrary username of your choosing

Select the wallet menu icon that looks like a stack of dollar bills next to the home icon that looks like a house

On the page that appears, under "Receive YadaCoins," you'll see "your address." This is your wallet address

Copy that address and paste wherever needed. This is ok to share publicly.