Remember not include students' names. The other day, I had to teach a lesson on basic chemistry. Even though I thought this was going to be boring material to cover, it was one of my best lessons. I am convinced nowe that humor is a great way to make less than exciting topics fun for the kids. They love funny pictures and when you give inanimate objects like compounds and atoms funny personalities.
Kids do love a good laugh.
I have found that a good way for the students to laugh and learn is for me to attempt to draw. They love the fact that I have no artistic talent. Also when discussing very dry material, making up a funny story will help them remember it. It is important to keep the story relating to the topic. The goofy demo's and funny stories go a long way to helping them learn.