Not knowing the circumstances by which you got the interview, you must have been surprised and maybe even a bit hurt that the recruiter didn't read over your resume in front of you. But actually, she had probably taken plenty of notes about you before you arrived. The fact that you received an invitation to have an in-person interview is very key, since a lot of resumes and hundreds of applicants don't even get the benefit of an interview.
I hope that didn't keep you from performing at your best during the interview and I hope it made you a contender for the job.
As far as looking at you is concerned, it's hard to say why someone would not look directly at you. Hopefully, there was nothing wrong in your appearance. It would not surprise me that the recruiter heard every word you said and saw your every reaction or reflection out of the corner of an eye, or from an unseen reflection. Again, hopefully her behavior did not throw you off balance. It is important to remember to remain as calm as possible and to stay focused in interviews. They are given the task of spending recruitment budgets very carefully and are experts at "sniffing" out the unusual and the unbecoming. Perhaps she was hoping to loosen you up or to get you to be more open with her. It's hard for me to say why she would not look at you - Your take on this would be as good as mine, or better since you were there.