Trusting Strangers?

Today I was jogging at Lake Phalen and this Hmong guy carrying a baby looked at me and started saying something. I took off my headphones and he said, "If you see a little boy on his bike, tell him we already passed him. Tell him we're at the parking lot". I said "Okay" and kept jogging on. When I got to the tunnel, where I will be heading home, I still didn't see any little boy on the bike (on his own). I started wondering if I was seeing and hearing things...

I thought this was strange because a random guy pulled me aside, was 200% sure I was Hmong (which I am) and started talking to me as if we knew each other. Told me to look out for his son and direct him on the right path. Why would he leave the little child behind? Why would he trust me? Am I seeing things? I must look really friendly...or mature...like a mother. Guess I'll never know why he decided to trust me. I don't know how to feel because I never saw a little boy. According to the postmodern view of reality, nothing is real. We create our own realities. Maybe I never talked to that father...