I don't think there is every a situation where we don't have something interesting to say. The most 'normal' or 'boring' person on the planet still has a life filled with thoughts, feelings, opinions, friends, family, a job, neighbours... it's endless and sometimes the pieces we resonate with the most are those of the everyday mundanities that we inevitably share.

Plus picking one thing isn't necessary but if you chose to, you can always change your mind.