I guess serious answers are not acceptable so the person who asked the question will be left wondering
So I'll give him a serious answer and you can all fry me for it.
At top of climb: Time and fuel check; discuss cruise altitude and step climbs; discuss terrain over which you are flying and any drift down/depressurization strategies; discuss nearest suitable airports; check weather at nearest suitable airports unless it's clear and you can see them; discuss required radio calls at FIR boundaries; CPDLC log-in; trim the airplane; call back to the purser and give her/him an estimate for arrival and top of descent; order food. If it's a 4 man crew the break schedule would already have been worked out and one crew gone to the back by this time. If it's a 3 man crew first guy went to the back somewhere above 20,000 feet. If it's a two man crew and you're operating under a good regulator that allows inflight rest then one guy might take a controlled rest break, but before he does the other guy uses the lavatory.
If it's a flight requiring oceanic clearance then that needs to be requested at the appropriate time. As mentioned while on the oceanic portion plotting as required. God help you if you don't have CPDLC and the HF propagation is crappy then you might be trying to call someone on the HF radio for 45 minutes just to make a position report. Well, that's if you're new. If you have been through there a few times you give up after 10 minutes and then try an hour later.
Some places you can be talking non-stop on the radio as the PM. The Saudi/Amman/Damascus/Nicosia/Ercan route keeps you busy on the radio for an hour. The Calcutta/Dhaka/Calcutta/Yangon route does the same.
Flying over Africa could require In-Flight Broadcast procedures.
Update winds and temps in the FMC. Step climb as appropriate. Check weather at destination and destination alternate.
Get up and stretch your legs.
Check time and fuel at various waypoints on the flight plan.
Entertain the flight attendants when they come up to the flight deck to say hello.
Approaching destination. Check the weather/get the ATIS. Set-up the arrival in the FMC. Calculate the landing distance and appropriate autobrake setting for your desired runway exit. Calculate the brake temperature for that autobrake setting. Brief the approach
Oh, and read the newspaper
TP