Proper way to bowl reverse swing in cricket

To do bowl reverse swing there are some some points to consider
1.bowl should be atleast 20 overs old.
2. bowl's one side should be shiney and othere side should be rough one.

there are couple of theory about outswing.one is put some moisture in shiney side that can start swing reverse.also the rough side so rough.
when you bowl reverse swing into the batsman, keep shiny side inside to right handed batsman and bowl nice and full.