Everything that you say during the interview, it is important, but more importantly, how you speak. Responding to questions from the employer, it is necessary to speak calmly, confidently, without slowing down or increasing the rate of speech. Many of us are quite difficult to control the breath with excitement, the interviewer it must pay attention.
If the applicant has suddenly started talking faster, it may indicate his subconscious desire to quickly "off" with an unpleasant topic. In other words, increasing the rate of speech with high probability - an indication that the dialogue came in weak competencies.
If your rate of speech has slowed, the personnel manager is likely to decide that this topic is for the applicant to something problematic because the latter need more time to think through the responses. Accordingly, the respondent has any doubts about the correctness of pronunciation, or wants to hide something.
The potential employer has the right not to know what to change the tempo of your speech affect any other factors. For example, you embarrassed to say on this subject, because you have it really involves a lot of bad, but it has nothing to do with your sincerity or skills.
Therefore, an important tip: answering questions, try to control the speed change of verbal flow, tone of voice and intonation (this does not mean that talk should monotonically).
Self-control so that while talking of course, is quite difficult. At the same time, it is natural - a key condition for credibility. Many recruiters even introduced eponymous scale on which note how the source was natural. Knowing that you are currently estimated to be necessary to try to ignore the situation. Imagine you are talking with a friend and told him about his previous job, then surely the interview goes well.