cozy up vs play up

cozy up and play up both are verbs.

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

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

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

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

cozy up (verb)	play up (verb)
ingratiate oneself to; often with insincere behavior	move into the foreground to make more visible or prominent
	ingratiate oneself to; often with insincere behavior