Two of the most popular folded napkin designs, the Bishops Hat and the Fan.
No.1 Bishops Hat
Unfold the napkin to its full size then fold in two to make a rectangle
Then bring the bottom left corner up and across to the top edge.
then fold the top right corner down
Then turn the napkin over and fold in half lengthways.
Then fold down one point from the left side and one from the right side
Then tuck one side under the other side
Turn over and repeat this and you end up with this!
Turn it upside down and open it out and there you are.
No.2 The Fan
Open out the napkin half way to make a rectangle. Then make concertina creases on just over half the napkin.
Fold in half to bring the ends of the folds together.
Fold and tuck in the right hand side which will keep the two halves fixed together.
You can cheat with a paperclip if it does not stay in place. Then open out the fan and there you are!