How do you make certain parts of a hack shiny?

[SmashClash]

For example: only make someone's hair shiny so it's like that shiny anime characters have on their hair.

[Akiba Red]

Cel-shade the texture.

[mnsg]

Certain characters have Ref and/or Env texture parts.  However, these texture parts usually only affect certain parts of a character.

[SmashClash]

Ok, thanks.