Gather your supplies. I am using: Catrice #590 'Jade is not my name', Catrice #410 'Pool party at night', Catrice top coat, Essence dotter and Essence nail polish corrector pencil.

Paint your nails with the blue and green nail polish.

Like this .

Drop a blob of the green colour on a piece of paper. Use dotter to dip into it and make dots on the blue nails.

Like this .

Now drop a blob of the blue colour on a piece of paper. Use dotter to dip into it and make dots on the green nails.

Like this .

When the dots dried well, start painting your nails with a top coat. Let this part dry very well!

Finished !

Easy, classy and very vintage.