When you feel alone, there is someone unnoticed smiling at you,smile back.And you'll always know their there.

I may be walking down a crowed street, I may be in a car that just
passed you by ,You may be in room, I just came in, you may never know
me, you may just pass me by; but you'll remmber my smile,You'll remmber
it cause it's true ,you'll remmber it for its kind,Kind to you;You may
look back as I pass, you may wonder why'd he smile,
You may wonder who I was?,
But Now your wonderings over; for,
I was your passing Smile" RY