Do you know how many shapes there are on the page? Count them and type the number. If you get it correct, the happy face will smile.
For example, if there are three triangles and you type the number 3, the face will smile.
Press a purple number on the bottom of the page to change the most number of shapes that will appear.
Press 'Do it again' or the ENTER (or RETURN) key to try it again.