cozy up vs shine up

cozy up and shine up both are verbs.

Word	Noun	Adjective	Verb	Adverb
cozy up	No	No	Yes	No
shine up	No	No	Yes	No

As verbs, cozy up and shine up are synonyms defined as:

cozy up and shine up: ingratiate oneself to; often with insincere behavior

Other synonyms of cozy up include cotton up, play up, sidle up, suck up.

cozy up (verb)	shine up (verb)
ingratiate oneself to; often with insincere behavior	ingratiate oneself to; often with insincere behavior