George, servants who were 'not wanted on voyage' and were traveling in 2nd Class obviously had all of their time free and would have no contact at all with their employer during the voyage. The personal servants traveling in 1st Class were working, but would expect a little time to themselves just as they would in their normal employment on land. That generally wouldn't amount to any more than one afternoon a week, but I imagine that at sea they would have had less work to do and more time to themselves.
In 1st Class, maids and valets would generally be traveling at the cheaper servants' rate, so they would not have access to the dining room or any of the other public services provided for the holders of full price tickets. In theory they possibly could have used facilities like the Turkish Bath or even the restaurant for which separate charges were made, but it's highly unlikely that any would have had money to spare for such luxuries, even if they had the time. And they certainly would have been discouraged from giving the impression at any time that they might be 'real' 1st Class passengers, though I'm sure there were a few who could (and sometimes did!) pull that off.
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