The best thing for applying glitter is to use either the glitter eyes fixing liquid (absolutely amazing!!) or the Mac mixing medium! I always do glitter first so I can brush off any excess, and when applying use a tissue/face pad underneath my eye so any excess falls onto that!
You use setting spray on a brush to help it stick too, and allow it to settle it a little before moving your eye. Any eyeshadow should be blended first before applying loose glitter, and then once my eyes are done i’ll Apply foundation to help clear up any mess!
Making sure you use your fingers in order to get the best payout of glitter and pigment is vital. Of course making sure you have a good base using a primer, potentially using some @urbandecay spray to enhance the colour works well as well!
never do your foundation first- work on the glitter and then you know how far to take the rest of the make up- make sure your glitter stands out from the crown first! Enjoy!