Wow! That's pretty cool! Not only does asking for directions help the robot arrive at its destination, but the process is more life-like. People find their way all the time by asking directions. I wonder if it can record paths and destinations its told and add more destinations and courses to its logic. Maybe even discover better ways to get to destinations, like short cuts in the road by asking more and more people.
This might be fun to try for my robot NINA to help my project navigate around the house...
I especially like the idea of robots interacting with humans "more naturally." Who doesn't want to be able to talk to robots?