Never Bareheaded/Playing With

Basic Trope: Alice keeps her headgear on all of the time.

Straight: Alice wears her hat all the time.
Exaggerated: Alice wears her hat when showering, when having sex and when she's having brain surgery.
Up to Eleven: The universe is going to explode unless Alice takes her hat off. She won't do it.
Justified: Alice is a Muslim who firmly believes in wearing a veil.
Inverted: Alice hates wearing hats.
Subverted: Alice wears a hat all the time. Then, when the teacher asks her to take it off, she says okay and does so.
Double Subverted: ...only to reveal another hat underneath her first hat.
Deconstructed: Alice wears her hat to hide her hairstyle, which she thinks is horribly ugly due to confidence issues.
Reconstructed: Alice wears her hat because she really likes it.
Averted: Alice is a devout Muslim but doesn't believe in wearing a veil.
Enforced: Alice wears a veil because the audience expects all devout Muslim women to wear one.
Lampshaded: "There's no real reason for me to wear this hat all the time. But I kinda like it."