when i was in high school what help me want to get involved was if there was weed involved.

potentially you could show them a quick demo on how you can purchase a little mary jane with it

do any of the dealers in your area deal in bitcoin?

if that doesn't peek their interest another less cool option would be to show them how it works by sending everyone who comes in 100 sats.. you could also have items that they could buy with the sats as rewards. then try to get them to trade items for sats with each other. once they see how effortless it is things start to click

go around your town and find businesses that accept bitcoin and maybe have speakers come up to talk to the club about it