Rosa, you could be right in being prepared by rehearsing the interview with relatives & friends. However, I still believe it would be quite different when doing with the actual hiring manager. I just don't know what & how they think about me. The interviewers might smile and say my resume looks interesting. But they still seemed to be in doubt & kept asking me more questions about my work experiences. Also one time I did an interview at CI Actuation. I remember the hiring manager asked what will I do within next 5 years. I just did not expect that kind of question. My mind just went blank. Lastly I just answered not sure.

Preparing in advance is the key. Prior to the interview have a family member or friend role play to ask you similar questions you would feel most uncomfortable with so that you can do your best during a real time interview. Remember to answer with a response that is similar or relative to that same scenario or question being posed. Breathe in between your sentences calmly. Focus on the interviewers eyes so they hear and see the sincerity.