S1E14 - What is this reverse hand signal Riker does?
@QDidNothingWrong I suspect it's just a simple case of the actor getting it wrong and no one on set really noticed at the time. It's definitely not the standard form.
Another fascinating point is it’s not tradition to do the Vulcan salute to a non-Vulcan of which none of the characters on screen were so it’s strange he’d use that salute when not referencing anything Vulcan in the scene.