It means you get involved. Technically, our local forms of government are not participatory democracies. Officially, participatory democracy is direct democracy, in the sense that all citizens are actively involved in all important decisions.
It shouldn't if washed with gentle care. Rayon is a cellulose fabric and like most cellulose fabrics, it may shrink when washed. If the manufacturer has indicated the garment should be dry cleaned only, do not push your luck. If it is hand-washable though, you can use the gentle cycle on your washing machine and Woolite to get the job done.
Also like sheep's wool, lama fiber will take a dye. Pure lama fiber products and garments will shrink (although less than those made from sheep's wool), and because they are natural fibers, lama fiber, sheep wool, and the objects made from them will be voraciously attacked by moths unless protected.