The proper way to handle a Napkin at Dinner:
Ordinarly, as soon as you are seated, you may put your napkin on your lap.At a formal dinner, however, you wait for your hostess to put hers on her lap first.

Remove the napkin from the table, place it on your lap, and unfold it as much asnecessary. Never tuck it into your collar, belt or between buttons of a shirt. When using a napkin, blot or pat your lips- never wipe with it. At the end of the meal or any time you leave the table during the meal, put the napkin on the left side of your plate. If the plate have been removed, leave your napkin in the centre. It should not be crumped, nor should it be refolded, rather, it is laid on the table in loose folds so that it does not spread itself out.

You can fold napkins in different styles, right away.