flirt

verb

Behave playfully or amorously towards someone without serious romantic intent.

"He loves to flirt with the barmaid."

noun

A person who habitually behaves playfully or amorously without serious intent.

"She's a bit of a flirt, isn't she?"

Thesaurus

Synonyms: chat up, mash, butterfly, philander, coquette, coquet, dally, romance, play, toy, prickteaser, minx