Why are you asking me? I've been married for 17 years, clearly I'm doing things right. If I was in the business of making mistakes, I wouldn't have been married this long. All kidding aside, I often see people have a lack of interest in the other person. It should be genuine interest in the other person's hobbies and interests. Like, my wife is really into dog training, I'm not, but still we talk about it and we do it together sometimes, just because I want to share in what she is doing and support her in it.