bring out the best in
bring out the best in (one)
To cause one to exhibit one's best traits. Mrs. Smith must bring out the best in her students—they all get good grades in her class and are very engaged with the subject matter. My kids never misbehave when you watch them, so you definitely bring out the best in them!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
bring out the best in someone
to cause someone to behave in the best manner. This kind of situation doesn't exactly bring out the best in me. Good weather brings out the best in me.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.