get started

verb3

1. •
   To begin an activity.

   • Come on guys, settle down, it's time to get started
2. •
   To begin (an activity or event); to get something to start.

   • Get the car started and then we can set off.
3. •
   To cause (someone) to start talking about something in length.

   • He is also an avid photographer and falconer. Don't get him started talking about his birds because he won't stop for a while. — 2015