It is usually because we haven’t thought about the types of questions we might be asked and what the best way to respond would be. Unless you are a very skilled actor, and let’s face it most of us are not, then it is highly unlikely you can fake your way through an interview. It is best to be yourself (keeping in mind that you are not out with a group of friends at the movies or having a meal). Answer All questions honestly and be mindful of your language and posture. Be relaxed and professional.