you are transfer 0.5, 1, 1.5, 2 SDB from wallet to @randowhale and to put url your post in memo.
after a while you get a whale voice, just above the sent amount

or instructions

How do I use @randowhale?
Ensure the post you want a vote to be placed on has not paid out and is not within 12 hours of payout as posts cannot receive votes that increase the reward during this time period
Copy the URL of the post you would like to have voted on
Navigate to your wallet
Select Transfer under Steem or Steem Dollars
Populate the To field with “randowhale”
Populate the Amount field with “0.500”, "1.000", "1.500" or "2.000" SBD (Steem is no longer accepted)
Paste URL into Memo field
Submit