coins are shiny, they feel like coins
Freshly painted flaming red fingernails are shiny and they are exciting. The painter is planning something fun and interesting, the painter is creating seduction and casting feminine charm, the painter is feeling beautiful, exotic, hopeful and powerful!
Shiny = glossy, reflective, smooth. Christmas ornaments are shiny, a clean car is shiny, baby oil makes skin shiny. If it is shiny, the texture is smooth.
Shiny, that sleek feel that can be a surprise of hot or cold when your finger meets it. Touching its smoothness is tempting and rebuking at the same time. Will the glint remain once your fingerprint stains the metallic sheen? Will the light be hot or the metal cool? Did the light make it so hot it will burn or did the air cool it enough for a cold dazzle that is hot in the eye but not to the touch? Shiny, hopeful in some ways and almost fragile in others.
Shiny is: Bright, glaring, blinding, white, silver, gold. It feels inciting/inviting/alluring.