There's action groups that specifically cater to latinos, to get them to register to vote. I know this for a fact because Ive seen it in california, and my family lives down in Modesto and Ceres, CA.
They go door to door in their neighbor hood and in surrounding areas looking for SPANISH SPEAKING latinos to sign up to vote, including the flea market I was talking about before.
So the thing is. They are looking for people to sign up who dont speak English. So use your imagination and your great power of deduction, ok?