Well, I have not worked on many ships in my career, but I've been on some, joining my father on the high seas on his voyages.
Here's the first ship I "was" on, 10 years old, 30 months at sea. I ran around the ship in a make-shift overall that the 3rd A/E made for me and a belt with wrenches and screwdrivers on it. Loved being in the engine even then and pestered the cadet who acted as a babysitter (I didn't know that there and then, been told later). Aided the engine crew with handing them tools and cleaned some safe places. They even deliberately held places closed and then "opened" them so every day was an adventure, Little Chief they called me, more because I was te son of the Chief than just an annoying brat.
Here she is in all her glory, M/T Havprins LPG-Tanker: Unfortunately, it is now in bits and scattered..Ahh, the shame.
The second was Havglimt:
I was either 12 or 13 years old when I was aboard her for about two months. Here I "worked" in the engine with aiding the 2nd A/E in some easy basic screwing and fixing some easy stuff, was a blast to be honest. Again, I think this other was a cadet as well, acted as a babysitter of sort, making sure I did not do anything retarded when onboard.
The third were not as big as the others, M/S Odin, LPG-tanker as well. I was 16 then when I was here for a month, mostly spending my days in the engine as usual, but now more watching the monitors, cleaning around and whatnot, even helped with the lub-oil exchange.
As awesome as it is, I actually found a pretty recent picture of her, as she drives in to the fjord where I live, first place I could actually at times just take our small 16-feet dinghy to visit the old man at work when they docked here.
Today I am mostly stationed at the this ferry, M/F Kragerø:
Then I am am occasionally on one of the twins, Jesper or Naus: