After you have read Stained Glass Rose Mosaic Part 1 and completed all the steps, it should be the next day after you glued your last pieces down. So now… we get to play with grout! Go outside and pour some of the powdery grout into your bucket, being careful not to touch it or get it in your lungs. I recommend wearing gloves starting from this point. Slowly add water to your powder until it is toothpastelike or has a texture like mayonnaise. After your grout is completely mixed up with no dry patches, you can mix in as much glitter as you desire for an added touch of sparkle.