I agreed with @OkProfessor8854’s view that networking was the best part of devcon 8.
I shared a warm note after meeting someone at Devcon, expressing the hope of meeting again and wishing them well until then.
I said, “It was great meeting you” after meeting the recipient at Devcon.
I said, “see you next year” to the person I had met.
I wished the recipient, “until then stay safe and healthy”.