Some students complain they find their faculty intimidating to approach while some faculty complain that they have empty office hours. Why not change the way office hours are structured so that more students get some time with you in a very productive manner?

Many faculty already set up small groups when assigning group projects-- you can simply rotate these small groups through office hours.  By using this method, at least some of the time, many more students get a chance to meet with you, even if they wouldn't normally come on their own to office hours. They also get to hear their peers' questions.

Students perceive a professor as more approachable in a small setting. You are really likely to see a difference in your class because students tend to be much more engaged when they have had a chance to ask questions (in a small-group setting) and interact with you.  Students find informal, out-of-class positive interactions with their faculty very powerful and motivational.

One more detail: It is more comfortable for many faculty, and for students too, to hold these office hours in a public space such as the campus cafeteria or coffee shop. Using a public space increases the visibility of your work with students.

So when classes begin next semester,  give this strategy a try and see the benefit it may provide to you in terms of time savings, productivity and better course evaluations --- and to your students in terms of engagement and learning.