Must admit, I have been guilty of posting a "flat" syllabus, only to find out that yes, you have to modify making it more detailed and interactive. I also realized in the classroom years ago, don't be afraid to get what you give. In other words, we as teachers give students feedback on a daily basis. Hopefully constructive. Can't be afraid to ask students for their feedback on the course. Receive their feedback and make adjustments to better the learning environment.