No one expects to be tipped in Europe, so don't worry about it, everyone is paid a reasonable wage, if have the local currency that's fine, but don't bother with the wrong currency in the pkace you are in, you will just look like an ignorant tourist
Set your phone to divert all calls to voice mail, Set phone to plane mode, switch WiFi on and turn mobile data off, connect to ships WiFi, switch
hotspot on. That's it
If you like sea days, you'll love a TA, definitely a different vibe, it's more of a voyage than a cruise and everything is more relaxed and a bit slower. Lots of onboard activities and things that link together and last longer ie trivia and classes etc