When you meet someone worth knowing — what’s your move?

Networking is basically part of the job — whether it’s an investor coffee, a random meetup chat, or bumping into someone at a coworking space.
I used to carry stacks of printed business cards until I realized they were usually forgotten at home.

Now I just have it in my Apple wallet in a digital format.

It made me wonder: What’s your go-to move when you meet someone worth staying in touch with?