There is definitely a fine line between nagging and persistence. Who wasn't told to stop "nagging" when they were a child? The truth is that children are the very best salespeople. They take the art of persistence, and oftentimes nagging, to impressive levels.
For salespeople, it is instrumental to understand where that line is drawn between persistence and nagging. This requires the ability to recognize when a request or a question is self-serving and doesn't offer a benefit for the person being queried. Persistence is a good thing. However, to be perceived as persistent, yet not a nag requires the mastery of the following skills.
Respect. Persistent salespeople are very aware of their prospects' and customers' time. They respect others' time constraints and understand that their priorities most likely don't include listening to lengthy sales pitches.
