Review your notes in the car. Find the restroom and check yourself out in the mirror. If the building is small, you might want to find a public restroom somewhere else before the interview. Relax and proceed to the receptionist or secretary about five minutes before your scheduled appointment. Always remember that interviewers begin by sizing you up the very minute they first see you.
First impressions go a long way in the interview process.
I have been looking forward to meeting you. Give the interviewer a proper, firm but gentle handshake. Carry yourself well as you walk into the interview. This will create an initial positive impression with your interviewer and indicate your confidence. These sentence fillers may buy you a few seconds to gather your thoughts, but they are barriers to clarity.