Just returned from a day trip to watch my Dgd play some hockey and followed it up with a nice meal and shopping at a LQS and a tool shop. My Dh waited patiently while I shopped and I waited patiently while he shopped. While we don't share our hobbies, we take an interest in what each other does. I make sure I stop in the garage and bring a cup of coffee and chat about what he is working on or lend a hand for a bit when I'm home and he will offer ideas and opinions when asked. I would say it is a mutual respect for each other's interests.