mix it up

verb3

1. •
   To compete vigorously, to quarrel, or to fight physically.

   • He would have felt like an irate ticket-holder at a prize-fight where the principals refused to mix it up. — 1920
2. •
   To create one or more variations of the usual way in which something is done.

   • Indeed, why not try mixing it up even more by adding a completely different deer vocalization to the mix, or maybe more, to make the woods come alive with the sounds that deer make? — 2002
3. •
   To engage with people, relate to people; to enjoy oneself with others.

   • And Carl hasn't really been mixing it up with the fans. — 1933