Turn off all unneeded network communications including Bluetooth, WiFi (in certain areas), and the MacOSX/iOS Airdrop file sharing utility.

Avoid giving out your phone number to strangers. If attackers have your number, they can target you in a SIM swap, port your number to their phone, and drain financial accounts that rely on that number for two-factor authentication.

Do not share any pictures of a location on social media while you are still in that location. It's better to post pictures after you have left the location, or sometime thereafter.

Be conscious of what you disclose about yourself at crypto events.

Be aware of those in attendance at afterparties, bars, and shared party locations.