From what I've seen this is already happening, along with other engagement drives like circulating petitions and recruiting for mutual aid or collecting aid donations. Those efforts can vary by location but it's certainly not "just standing around with signs" like critics say.

have you been to a protest? they do this at like, every single one of them.

Some dude at the protest I attended had a petition signature sheet for ranked choice voting. He took time to calmly explain how RCV functioned to protestors who weren't familiar with it. Wound up getting a lot of signatures once he brought up the costs of runoff elections on the taxpayer's dime. Gotta know how to speak to your audience