Build a shareable asset once (a guide, a list, a template) so you can send it the moment you meet someone who'd benefit.
The idea
Patrick Ewers introduced me to the "value payload": something you've created in advance and keep ready for the people who'd find it valuable. It often has nothing to do with your work or the reason you met. That's fine. Long-term relationships run on being trustworthy, supportive and of value to each other.
How to do it
Ask yourself what troves of knowledge are locked up in your head. What hard-earned bits of wisdom would help the people you meet?
Make it once: a PDF, a list, a private link, a guide.
Keep it ready as an email template or somewhere you can grab it fast.
The moment you identify someone who would benefit, send it.
Example
When my wife and I were expecting our first, I surveyed about 20 friends for their parenting advice and turned the answers into a slideshow. Whenever I meet someone who's expecting, I follow up with the PDF and my top two insights from it. I've also made and given out a list of recommended hot sauces, a database of consultants I trust, and a guide to finding your purpose.
Relatable: Relatable's email templates are a handy place to keep a payload ready to send. A doc of links you can copy from works too. How-to: Save and reuse email templates.
Related frameworks
Stop Holding Back Your Gifts: Withholding useful help because sharing feels pushy is the selfish move. If you think it might help someone, send it.
Templatize Your Actions: Template the repetitive parts of your outreach and personalize at send time, so "what do I say?" becomes "which one do I send?"
Transformation Over Information: Information is everywhere now, so value means helping people change. Discuss the article, join the workout, walk them through what worked for you.