If you called me up right now and tried to sell me something I would hang up.
If I called you up right now I would expect the same thing.
If you were looking for something and Googled to find me as the expert, you might send me an email. And if I responded like a human—not selling, just helping—you just might write me back.
Then we can have a conversation.
And if it turns out you need something that I happen to sell, you just might ask me for it. And you would probably tell someone else, and perhaps you would be smiling about it.
I’d be smiling too.