WS and RS?

I know RS stands for right side and WS stands for wrong side, but, I don’t quite understand how to use it in a pattern. Can someone explain please?
Thanks in advance from a newbie!

:XX:

Right side is the ‘public side,’ the side on the outside of a sweater or a bag or socks that you want the world to see. It can also be the side of, say, a blanket that shows the pattern --the pretty side.

AH HA! Pretty simple lol…THANKS!!!