Students like to see a passion for what you are teaching. If you seem bored or just going through the motions, they will have little enthusiasm for what they are learning and may not think it is important. 

It is important to understand that not all students in the classroom learn, adapt and process information the same way. It is important to get to know your students to uncover their priorities and needs to provide a well rounded learning experience that feels supportive to not only younger inexperienced learners but older learners with more life experience as well.