Get an intermediary to present your credentials first.
Persuasion research shows an introduction by a third party improves the odds your audience will buy your message far better than a self-introduction.
The third party need not be a trusted source.
Researcher Steve Martin examined the effect on sales of a third-party introduction.
He arranged for a receptionist to introduce a real estate agent's credentials to first-time callers before connecting them to the agent, instead of simply putting callers through.
The agent booked 20 percent more appointments as a result.
"Arranging for others to tout your expertise before you make your case can increase the likelihood of people paying attention and acting on your advice," according to Martin.