Palo I tip the 'fee' amount again pp, ie if the fee is $15pp I tip $15pp.
I understand that there is a great variance on tipping at Palo, they now have a 'set talk' about giving excellent service, and letting them know if it isn't excellent. The tipping the fee amount is the most popular. But nothnig is set in stone and its up to you.
Drinks I leave it at the 15% auto tip as
DCL sets this, unless its a big or difficult order.
I pre pay tips pre cruise, as a 'base' I then will add a little bit more in cash, or for our stateroom host as we had a large room Cat 3, I added more last night.
I understand most people tip the correct suggested amount, but there are a few, who duck going to the evening meals, or the last evening meal or breakfast, to avoid paying tips, or tip a lower amount, and do not wish to see the servers. This tends to be first time cruisers who do not intend to cruise again.
Always Always tip on last NIGHT, as DCL suggests this and your servers might not be there for breakfast, this has happened twice now to me, our server on the last cruise last week had to go to immigration at 7am, The all have to do this once every four weeks and, they might not be able to see you on disembarkation.
I also tipped concierge although there are no guidelines.
In six cruises I have only tipped below the recommended amount once and that was for a head server who didnt show until tip night. I gave his to my other servers.