Three elements of a speaker’s credibility and the phases of credibility. To be credible, a speaker should possess these three elements: competence, trustworthiness, and dynamism. A competent speaker is someone who knows what he is talking about. Someone who has the requisite experience, knowledge, and insight. finally, a competent speaker is someone who present himself and his ideas credibly. For example, when a speaker want to convince the audience to by a blackberry phone, he needs to tell the audience what he knows about the blackberry phone. Trustworthiness is another factor that may help the speaker to change his audience ideas. To be trust, a speaker needs to be honest, reliable, and a person of his word. The last factor is the speaker’s