I only used interpreters in classroom, not in car,
You can also
use the “Otter” app as an iPad/Laptop free classroom interpreter so nobody needs to be in the classroom. A classroom voice-to-text interpreter for free!
For driving behind wheel, I used a good defensive driving school in Canada with a driver willing to pre-agree to about 10 signs, that included minimum basics. Keep it simple.
- switch one lane left (palm pats air to left), also used to choose left on fork road
- switch one lane right (palm pats air to right), also used to choose right on fork road
- turn left at next left (thumbs left)
- turn right at next right (thumbs right)
- straight ahead (“palm chop” with palm vertical, fingers pointing forward)
- slow down (palm patting air downwards)
- stop (standard open palm, stiff and assertive like a police traffic cop)
- pull over (“move lane right” signing followed by signing “stop”)
- thumbs up (confirmation my previous move was good)
No pointing is allowed, that gets confusing without context, and due to parallax/lean. No speaking or complex communications until pulled over.