If you want to boost your chances of being paired with a Waymo vehicle, you can opt in by going to the Uber app, tapping Account > Settings > Autonomous vehicles (under Ride Preferences), and then hitting the toggle next to Get more Waymo rides.

Waymo’s robotaxis will begin carrying passengers through parts of Atlanta Tuesday in an expansion of a partnership with Uber’s ride-hailing service that began earlier this year in Austin.

Uber Technologies on Tuesday is beginning autonomous ride-hailing in Atlanta with Alphabet unit Waymo after offering the service in Austin, Texas, since March.