First paint your nails in which ever colour you chose, make sure that you put the clear nail varnish on top to give it the shine. Let it dry or even leave it a day or so.
Paint the clear nail varnish to the tip of the nail, do not let it dry.
Dip your nail into your glitter, and repeat with each nail make sure you put the nail varnish on then do the glitter before moving on to the next nail otherwise it will dry before you need to put the glitter on.
Repeat like so.
All your nails should look similar to this.
Once you are done, leave them to dry for about an hour then get a cotton bud and remove any excess/unwanted glitter.
Put a final coat of clear over the glitter to seal it in other wise everything will be covered in glitter.