I'd say if they "like" your post, it is an engagment in itself. I am speaking from my marketing experience. Not all people comment or have to say. It is not a bad reflection on u or your content. Sometimes it is a good sign so you can learn more what content attracts your audience (that is if you know your audience or you are still finding them). If you are keen to understand them then take the "likes" as a starting point. 🤓