'What is Glamour and how do I unlock it?'
Glamour is the process of changing an equipment's look into a different item with the use of Glamour Prisms. You can unlock the ability to glamour by doing the level 15 quests 'If I Had a Glamour' in Vesper Bay, West Thanalan. Although not required, you can unlock the ability to dye gear with the nearby quest 'Color Your World'. You can get the Orange Juice needed by talking to the nearby Merchant & Mender. Items used for glamouring are not lost upon use.
'How do I glamour? Where do I get more Prisms?'
Glamouring is done by right-clicking (Square or X on controllers) on the equipment you want to glamour and choosing the option 'Cast Glamour'. After clicking this you choose the item you want the appearance on the right half of the menu that opened up. You can get more Glamour Prisms by either crafting them after completing the quest 'Absolutely Glamourous', buying them from your Grand Company Quartermaster, or buying them from the marketboard.





