How could i describe myself to the stranger on the street?

Don't describe your self just say hay I like the color of the sky today start simple than start describing yourself until you really know what kind of person they are.

Hi addis,

Just start with your name.
I will just give my example.
"Hello, I'm Sunil "

Depending on the other person's reply you can proceed.

The conversation depends on the context.
Think, why you want to describe yourself to stranger.

Regards,
Sunil B N