Dance. Sing. Be crazy. Get in their faces. Literally. Be a personality they can’t ignore. Pick on someone. Pick on another. Ask them questions. It’s best done with good humor rather than annoyance, but shit. If they won’t play along, then let them be annoyed.
Ask to see their notes. Read them aloud. Make fun of them. Tell you them you will make fun of them until they shape up and do a good job.
No, don’t do that. You should encourage first. Making fun won’t help, but it might make you feel better.
Or give in. Lecture in a monotone. Do what you have to do and get out of there. Have them sign a contract that they understand the rules, such as there will be no class notes unless they take them themselves.
The temptation is to embarrass them. Like the person who emailed you about class notes while you were saying there wouldn’t be any. I would so want to point this out to everyone in the class, but it would just make them resentful. I suppose you could make a funny story about it, and tell that story without mentioning any names.
Isn’t teaching fun? I love my job. I don’t have to teach. I only help people who come to me asking for help. In other words, they actually want it. They are motivated. They have real work to do.