Objectify the situation, exhibiting an emotionally mature perspective, and how you would navigate such a situation. Remember, you want to come across as relaxed and confident, so research the body language of a confident and relaxed person in a seated position. Pump yourself up with physical exercise to manifest confidence. Go into a private space with a mirror, look yourself in the eye, and give yourself a pep talk. Raise your arms, stretch your back, and make yourself as big as possible. Be ready to share what you have to offer, that you are always ready to do the right thing, and that you believe in yourself.