The next stage is to fold the tissue paper kite to strengthen it. The folds work a bit like the sticks in a larger kite: they stiffen it and help it catch the air.

So fold your kite from corner to corner, where the two dotted lines are on this picture. Start by folding it along one line and then flatten it out and fold it along the second one.

Why do you have to take care when handling tissue paper?