As Jennifer, Stefanie Powers keeps her fingernails rather short, as can be seen on her left hand when she's rummaging in her clutch purse as she approaches Hannah. The nail of the left thumbnail that is briefly seen as she's putting a coin in her purse seconds later is considerably longer.
When Jonathan and Jennifer are talking about "the five senses," he unexpectedly kisses her, his head is angled so that his face is away from the camera, the shot cuts to Freeway, who walks into the room, sits and watches them. When the shot cuts back to them, his head is angled so that his face is seen by the camera.
During the sequence when the bad guys steal Jennifer's purse from her car, the streets alternate between soaking wet and completely dry.
It might seem strange that a blind woman could describe Jennifer's appearance, but if the blind woman knows Jonathan by his smell/step, it's likely that Jonathan has described Jennifer to the blind woman.