Face-to-face interaction
Face-to-face interaction was the social interaction of people directly in-person.

In 2268, Commander Spock and Lieutenant  agreed that the  should attack a Romulan Bird-of-Prey which was on the Earth side of the Romulan Neutral Zone. Doctor Leonard McCoy was dismissive of attacking them based on the memories of a war over a century before, and on theories about people they had never met face-to-face. ()

In 2364, Lieutenant Commander Dexter Remmick asked Commander William T. Riker about discrepancies in the Captain's log; if Jean-Luc Picard ever falsified a log. Riker told Remmick to bring Captain Picard into the ready room and ask him face-to-face if he wanted to discuss anything about Captain Picard. ()

In 2366, Lieutenant Commander Data volunteered himself as a conduit for a face-to-face negotiation with nanites who had infested the . ()

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Social sciences