It does not help to not being signed up for cryonics oneself.

I talk about it as something I'm thinking about, and ask what they think. That way, it's not you trying to persuade someone, it's just a conversation.

"But death gives meaning to live. And if nobody died, there would be too many people around here. Only the rich ones could get the benefits. And ultimately, whatever end the universe takes, we will all die, you know science, don't ya?"

"Yeah, we'll all die eventually, but this is just a way of curing aging, just like trying to find a cure for heart disease or cancer. All those things are true of any medical treatment, but that doesn't mean we shouldn't save lives."