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.
It has now been demonstrated in scientific studies, both in the laboratory and in men with BPH that you can shrink an enlarged (but not cancerous) prostate by taking pills or capsules containing a naturally occurring substance derived from the berries of a small palm tree called the saw palmetto.