Probably taking pics.
Mr Hat, it depends on who you work for. Since I work for NetJets Europe, I have a fixed roster. I do tours of 6 days on and then have 5 days off. (although, it's changed a little bit now I'm playing in the office in Lisbon too).
Since NJE is an AOC holder, we need to conform to legislated Flight and Duty limits etc. So it's not bad. No two days are the same but some days can be a tad hectic.
Last tour. Fly day 1 to Lisbon. Day 2, standby, watched the rugby. Day 3, 3 sectors, including a fun approach into Lon City and then a short ferry. Day 4. Another standby day. Hit the gym, dinner with Checkboard. Day 5 early-ish start to Ireland and a loooong wait and then to Spain. Day 6, sleep in, gym and then fly to London. Finish.
We do take care of the luggage, brief the passengers and look after them if the flight time permits. Changes do occur. However, my days off are respected.