LOL! I read Psyche`s questions and the replies without logging in. Then I took few photos and came back to post. I logged in and the first thing I saw was Gordon`s photo of the Playmo klicky holder. It took me half an hour to find that gizmo, so I´m going to post the photo.
I never use it, by the way, I used to but it has it´s drawbacks; the klicky can still move at the waist for example.
I take the figure apart. If I want to paint the body I hold the legs, or the feet and neck between my finger and thumb.
If I want to paint the legs I hold the frame.
If I want to paint the arms I push the hands into plastercine, some people say modeling clay, I think.
I started painting using acrylics, but now prefer enamel paints. All I can add to what Sylvia said is that some of the gloss colours, especially black, take days to dry, but the matt colours are surprisingly quick drying. Enamel colours can be thinned far more than acrylics and the paintwork is robuster.
Go to a good modal or art shop for your brushes, no one can paint with bad brushes. The best is to ask for advice. Brushes are numbered according to size, I use a 2 for painting a torso or any large area an 0 for finer work and a 000 for the finest work.
Everyone develops their own technique and tricks. Try something simple to begin and preferably on an old and boring klicky.
Have a cloth and paper towels ready, just in case... ;-)