How to paint with Edible Art Metallic Decorative Paint by Sweet Sticks Before you start: Tip 1. Shake the bottle well to ensure the solid and liquid ingredients mix together to form an even consistency to paint with. You can also open the bottle and stir the mixture with the end of your paint brush before shaking. Shake the bottle each time before using the paint, including between sessions. If your paint is transparent, the ingredients havent mixed together Tip 2. Play with your paints, become familiar with them.