Floating around the classroom during a lecture can help integrate the classroom environment into your lesson. Actions speak louder than words and you should make gestures and use movement to engage students. 

It is important to be able to identify what a learners needs are and to make sure that they feel they have been heard. Looking out for the wellbeing on the learners is of utmost importance in creating and maintaining an efficient classroom/lab environment. 

Having team/group activities and exercises are an effective way to teach. This help learners engage in the material and experience memorable learning opportunities. Additionally, setting up expectations for the course is very important for the success of the class as a whole, paving the way for success on both the instructor and learner fronts.