when giving direction
I remember there was once I was at Ang Mo Kio Bus Interchange when this lady asked me what bus to take to Ang Mo Kio McDonald's. I told her it is just a few minutes walk from the interchange (in fact it is just beside the interchange!), but she insisted to take a bus. So I told her to take a pick, almost any bus can take her there (just don't take to the end and take back the same bus back to AMK).
Another time I was at the bench outside Hon Sui Sen Memorial Library in NUS when this guy asked me how to go to Central Library. I pointed to the shuttle bus stop opposite the road and ask him to take the bus, but he said he wanted to walk there. So I told him to follow the yellow corridor. *shrug*
On Monday I was waiting for bus at Bukit Timah, then a man approached me for the direction to Thomson Road. That stretch of the road doesn't have bus to Thomson, so I directed him to the next junction where there are buses going to Thomson. The walking distance is about 10-15 minutes walk. Yes, I told him to walk. He looked like he can walk.
(do you remember I walked to NUS from home before? It's easier for me to tell you how to walk to destination than to take bus)