The reason people create LinkedIn profiles is to provide more context about themselves to others with whom they have professional interactions.
Checking the interviewer on Linkedin will give you a sense of the person you’ll be meeting with, as well as their career path and tenure with the company. The knowledge can be used to steer the conversation in an advantageous direction.
Do not spout off facts about the interviewer you found from his/her profile or you would come off as creepy.
