Kayne on Nostr: Focus on real world connection with anyone you're meeting at protests and only bring ...

Focus on real world connection with anyone you're meeting at protests and only bring up nostr if they complain about other social media or after getting to know them.

Use signal or whatever to keep in contact with those people.

On the other hand, if you're more focused on onboarding people at protests to Nostr, focus on the organisers.
Convince them to make accounts for promoting their events, get a bunch of bots to share and comment so they think Nostr is active, maybe then the organisers will promote their accounts to people attending the protests.
(Recommend them a client that does not have zaps, most of these people will automatically distrust any kind of social media with crypto payments)