It's easy to overanalyse these things, but I would read lack of notes (for recording answers at least) as perhaps indicate of lack of preparation or lack of interest. Notes of a few questions also suggests forethought, planning and attention to detail, to ensure you don't omit to cover something important.
I wouldn't read a few notes and a pad as bad, but I might read lack of them negatively.
It is, however, far from the most significant point about an interviewee. It just contributes to the overall impression of him/her.