Hand in your first valuable.

Earn your first RP rank up.

Drive a total of 1 miles in Career mode.

Complete Fracture Jaw in Campaign on any difficulty.

Recover Mr. Dinosaur for George.

Get all wheels of your car into the air for at least twenty meters and then touch the ground again.

Complete Chapter 4.

Kill fifty enemies.

Find at least one collectible in the game.

Do your first job for Mike Bruski.

Protect Francesca.

Why don't you try finishing up the tutorial? You might've mastered the first step, but nailing down the fundamentals is what's important.