I think what I couldn't help her with was when she said that she couldn't take one hand off to signal, look over shoulder etc...
Unless she's unusually inflexible, she should be fine looking over her shoulder with hands on the bars. I got out of the habbit of signalling when I rode a Dahon for a bit (too twitchy by far to ride one-handed with confidence) and have never gone back to it - just convey your intentions clearly by road position.
Unless she's unusually inflexible, she should be fine looking over her shoulder with hands on the bars. I got out of the habbit of signalling when I rode a Dahon for a bit (too twitchy by far to ride one-handed with confidence) and have never gone back to it - just convey your intentions clearly by road position.