Degrease your egg with some alcohol.
Stick your stencil on your egg with some tape.
Create a dot in each hole of the stencil, use a embossing pen to create the dot.
Remove the stencil carefully.
With a small stick create smaller dots. Work from the inside out.
To use the right size the best thing is to do is to place the stick in the stencil
If the stick fits in the stencil it's not to big to use for the pattern.
When the dots are dry, you can apply a smaller dot in a different color.
This will give depth to the pattern.
Use your own imagination.