Find Pain. Don't BE a Pain.
In sales, it's essential to "find pain" - and it's vital to "not BE a pain!" Following up is one thing, but pestering, bothering, being a pain, that's not what good salespeople do. They trust the process; they trust that they have clearly shared their message, and if the prospect is ready, they will buy. Don't be a pain. Find pain, and help solve that pain.