What does it mean when a guy compliments random things, like your keychain or bracelet?

[Anonymous]

[userxvi]

It could mean he wants to compliment you but does not want to comment on your Ass, Tits or looks in general because it could be off putting. Honestly he probably got told in some youtube video to compliment things like that instead of looks. I think he might be interested in you

[Plinko]

He either interested in you and is complimenting things he suspects you might like about yourself/appearance, or; he likes the thing he complimented.

Use context clues in the resulting conversation/behavior to determine which.

[Guy13]

He is noticing the details. Guys, generally speaking rarely notice or attend to the details. He thinks much of you.