play up vs cozy up

play up and cozy up both are verbs.

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

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

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

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

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