Are you a Job Seeker? Are you in Sales? Are you trying to get someone's attention? Don't be the Annoying Orange. If you are calling a Hiring Manager or Recruiter: Have a good reason to contact them, not "just to check in."
5 Tips to help you not become the Annoying Orange:
Your goal should be to establish a partnership with them, not to anger, annoy, harass or make them upset. It is a process, they will not be your best friend overnight.