Create a New Object, and add a Cylinder.
Change the Radius to a good eye size.
Add a Move block. Change both X and Y, so that it moves up and across.
Using a negative number moves in the opposite direction to a positive number.
From the Control menu, find the Repeat 1 Times block.
Drag-and-drop it so that it surrounds the earlier code, and change the number to 2 Times.
You must move the second cylinder, so that it doesn't go to the same place as the first one.
Add another Move block, underneath the loop.
Add a Create Group block to the end of your code.
Instead of choosing a colour, select the transparent box next to it.
This option makes the eyes a hole, so they can be cut out of the design.