What do you think about strangers?

Hello everyone!

This occasion I just want to write about, how can you help a strange?

Imagine!
You are walking on the street, then one person approaches to you to ask where there is a Burger King.

First give a look at the person,
Once after the expression of his face and, you decide to answer the question or not.
---
I'll describe the person.

Is a man, I think he was an asiatic for his eyes,.
He drove a beige SUV new model ( I guess is  new)
His eyes were mysterious ( scary eyes )

Of course you can think, that  all people is bad, but you can take precautions.

I answered :  No, near here I haven't seen one, but you can take a main street maybe you can found one.

And he answer... ok ok...
.....

Minutes later ... I thought about the question
...
Why if he has a new car, he do not watched on GPS
In these days everybody has a cellphone... a smartphone indeed
Why after to ask me, he looks to everywhere like if someone is looking at him or hide for someone?
...

I don't know what to think, perhaps that person was looking for something and not necessarily a burger king.

But in USA a lot people act suspect.

....

What's your point of view about this?