Insert your spudger, perhaps an iSesamo, to the top right of the display. You will want to slide it between the glass and the plastic bezel.

There is a good amount of adhesive along the top of the display.

Replace the spudger with a guitar pic to hold its place.

Be careful how you insert the spudger, though, since there is a cable that connects the display to the logic board between the ear speaker and rear camera hole.