PGP Key Signing Party
1. Create a keypair with gpg. I suggest using https://alexcabal.com/creating-the-perfect-gpg-keypair/. Do this ahead of time. 2. Print out or write down your fingerprint. This will be for each other to verify that we are signing your key, not someone else's. 3. Bring a photo ID. Ideally a government-issued ID. 4. Upload your key to https://pgp.mit.edu/.
See also https://wiki.ubuntu.com/KeySigningParty.