Like StantonHyde and MontrealMom said, can you break up the class? Lecture them and then give them a quick pop quiz on what you just talked about? THat might help them stay awake, LOL. Or, at some unexpected point just have everyone get out of their seats and move to a new one. Musical chairs. Or, throughout the lecture, stop in the middle of a sentence and ask a question about something you said 10 minutes before. The first person to answer your question correctly gets an extra point on their next test- so extra credit. I'm just thinking of ways I would have LOVEd my professors to help me stay awake while they were lecturing.
Oh, and raising hand, I too tend to spend a lot of time here when procrastinating. It's just too easy.
struggling mom to Gator ('03) Cha ('05) Sisi and Greenbean ('07) and the hubby child ('71)
"I'm sure we can handle this situation maturely, just like the responsible adults that we are. Isn't that right, Mr. Poopy Pants?" - The Naked Gun 2 1/2