You bitcoin people are probably going to have friends, family and/or collegues reach out to you asking about bitcoin. I encourage you to help them and not just evangelize.

Ask them what they want to know. Are they interested in getting rich quick? Maybe ask them what their timeline is. If they're going to need fiat in a year, maybe bitcoin isn't a good choice. Be honest. We've had huge bear markets that have lasted a long time. Acknowledge that it's possible they could happen again.

If they have a 10+ year mentality, and are aiming to outperform the stock market (as opposed to getting "rich"), they'll be less likely to be let down if things go poorly, and more likely to be impressed if things go well.

Of course if the people are interested in defending the environment, fighting government oppression or not getting screwed over by legacy finance as much, then don't talk about ROI, inform them of how bitcoin can help, back it up with real world evidence, specific numbers, and make it self evident that you're not cherry picking data. Be helpful. That's why they reached out to you.

Take a page out of Daniel's book: https://batcoinz.com/orange-pilling-the-early-majority