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.
When viscose rayon can be hand washed, do so with care. Always support wet fabrics, since rayon has low wet strength and is unstable when wet. Avoid wringing moisture from fabrics. Gently squeeze out moisture and roll in a towel.