Sneaky but you can casually linger in the car for an extra second; most drivers rate you right as you're getting out, with a phone that's usually mounted within eyeshot of passenger seats.

The ones who will give you 5 stars usually do it right away in front of you; if they seem weirdly secretive about it, you're probably not getting 5 stars.

With 3 digits of precision, not a massive amount of rides, each rating will make it go up or down.

Won’t work too well if you frequently take a lot of rides.