How many sides has it?  Are they all the same length?  If not, make them all the same length.

What can you say about the corners/angles?  Which way up is it?  Turn it upside down.  Turn it back again.

Cut a little piece off each corner, the same off each, in a symmetrical way.  What shape have you got now?  What is it called?  How many sides has it?  How many corners?

Are the sides all the same length?  Are any of them the same length?  Which ones?  Are the corners all the same angle?  What angle is it?

Can you adjust your cuts so that the sides are all the same length?

Go on cutting.  What happens then?