Fist bump
A fist bump was a gesture in which two individuals hit their fists together, either as a form of greeting or to celebrate an accomplishment.

In 2380, Ensign Beckett Mariner gives a fist bump to her mother Captain Carol Freeman while sincerely apologizing to her for her actions in interfering in the politics of a planet inhabited by  and -like races saying that she was out of line, and thanks Freeman for looking out for her. ()

In 3189, upon completion of a project, Lieutenants Gen Rhys and Ronald A. Bryce fist bumped on the bridge of the . For Doctor Hugh Culber, this physical demonstration showed that the mantra "When we find the Federation" had a helpful effect on some of the Discoverys crew. ()

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Communication