Download either of the special testnet-only versions of the Daedalus wallet for developers and install it by following the on-screen instructions.
Click on ‘Create a new wallet’.
Name your wallet and create a spending password. Note that the password needs:
You will be prompted to a screen where you will see a 12-word recovery phrase. This is your wallet backup phrase. Make sure you write it down and keep it in a safe place.
Select the words of your recovery phrase in the exact order.
Read carefully the messages and put a tick in the boxes. Click on the confirm button.
From the list, choose your new address and click in ‘Copy address’.
Click on Request.
To send tokens:
Click on the next button.
Wait a few seconds for your transaction to be processed and confirmed.
In the summary you can see all the details of your transaction.
To Receive tokens:
Give your new address to the sender.