<a move is inherently defensive like the hesitant one "1. e4 e5 2. Nf3 Nc6 h6" does not improve Black's position significantly; it neither develops a piece nor enhances central control. It ultimately costs precious tempo without posing any threats or creating tactical possibilities. Moves such as ♙d4♙exd4♙cxd4♙d5 show how Black's passivity might be met by White's energetic central play.