Bloggers are humans and have certain weird interests outside their niche. Use this to deliver a surprise sometimes. But please do this at least once in 2 months to avoid looking like an unserious blogger.
A blogger whose niche is fashion can decide to post something from a football match won. This blogger is a Chelsea football Club fan and they haven’t won a match in their last 5 games. Then Chelsea FC eventually win a match. It’s weird to post that on a fashion blog, but let your fans know that you are a Chelsea fan and that the win was so important to you and you need them to rejoice with you.
Some will call you silly for posting that, others will throw a joke, but majority will tell you about football too.