Here are the steps to send Bitcoin in Coinbase...
1. Once logged into Coinbase, navigate to the "Accounts" tab and click the "Send" button of the coin you are looking to send(BTC)...
2. Then enter the Address that you want to send the coins to and the amount you want to send(this should have been provided for you on the Hippo webpage at the final Checkout screen)...
In you case this is 0.0069 BTC to 16G7L2B4b56PEFFvfi6VBFZoPtYmj5smAr
3. Click "Continue" to confirm the transaction...
4. The transaction will then be confirmed by Coinbase(it may take some time for it to be confirmed on the Blockchain and be received on the other end).