
Copycat
Negative Implication
Often used disparagingly to criticize lack of originality.

His work is just a copycat of the famous artist; nothing unique.
Peer Influence
Common in school settings where students mimic others.

She's such a copycat, always wearing whatever Emma wears.
Not Always Negative
Can be benign, as in cases where imitation is a form of flattery.

Your little brother is a real copycat, always following your good habits.
Compare with
CloneDoubleEchoEmulatorFollowerImitatorMimicReplica
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