The teacher was very sympathetic to me, a rarity. He asked me to provide books for his class reading list. I'll send him a good basic selection along with subscriptions to Freeman, Reason, and Laissez-Faire Books catalog. Along with that action item, my next step is to send the students more info. Speak to early morning classes.
Kids get very sleepy after lunch.
Wear a suit. Look like you're in office already. Hang out with the teacher before and after class. Ask questions, ask for advice. Bring eye-catching books and magazines for show and tell.