3 Major Sales Mistakes You Must Avoid Consultant Jeff Hoffman addresses three common problems.

Your persistence comes off as nagging

The fix: End each call with a question that continues the conversation, such as, "What's the best time to call you back and get you live?" Or, "What's the best way to talk to you about X?" Plan to reach out five times over the first 30 days -- and if there's no bite, give it three to six months before trying again.

You don't seize the moment