Introductions
Welcome candidates and make them feel at ease. Introduce yourself and fellow interviewers.
Broad questions and answers
Ask basic interview questions, like "Why are you interested in this position?" . Then continue with more involved questions, like "Tell me about a time when you had to face an irate customer".
Position-related questions
Ask questions to tie the candidate's experience into what your company needs.
Conclusion
Leave the candidate feeling good about the company and its culture.