When working with Water Make-up preferably use separate brushes for light and dark colours.
Hint: Regularly change the water you rinse your brushes in and preferably work with two water bowls: one for light and one for dark shades.
Grimas Water Make-Up (Pure) can be used around the eyes, but children often do not like it when brushes are so close to the eyes. So decide yourself how far you want to extend the colour.
When working under the eyes, have your model look upwards - only with the eyes, without moving the head. If you work above the eyes (eyelid), have your model close his/her eyes in a relaxed manner.
Children are inclined to shut their eyes tight. Then you can say: keep your eyes closed as if you are sleeping.