Cool, Peachy!! Are you going to coach your husband through it...or maybe secretly make notes each day pretending you're him and answering the questions as he might!? (ha!) Either way it will be a good exercise!
What I did with my Wavespell back in the spring was to write a bit in the morning - Ask the question, read the Star Glyph, and answer the question. Then at the end of the day look at it again and see if there were events and thoughts throughout the day that backed up what I said or...you know...big lightning-bolt-head moments! It is pretty neat.
Either way...check and see what intention he's setting during this period! (I've noticed that some people just do this naturally during their wavespell without even noticing it! They start thinking something new as though it's Spring or something...)