Try make some origami stars using just square sheets of paper. You will need 4 sheets of A4 paper which you will use to make a total of 8 squares (2 from each sheet.)
You can colour the paper before you start using crayons or colouring pencils but not markers or paint. If you use markers or paint, these will make the paper weak and soft and the origami folds will not work.
Here’s a video to help you.