Soldato
Once I get on, I watch the cabin door like a hawk. As soon as it shuts, I'm up out my seat and moving to an empty row/emergency exit. Much better! You have to be quick though...
I do this with Ryanair & EasyJet flights, except I sit at the gate until I’m clearly the very last person on the plane and then get on and take my pick of where’s left haha.
Done it dozens of times and only been asked to move once.