Commander Sisko folds his arm while trying to convince Gul Dukat that he wants to help disable the Defiant. We see him fold his arms as he says "Then bring me with you..." He leaves his arms folded for several moments as he continues his argument. The camera leaves him for a moment and then when the shot returns to him, we see him fold his arms again as he says "I want to to try and disable it first".
In the first episode of this season, we see the new style combadge be released. This episode aired at the same time of Star Trek: The Next Generation (1987) but the combadges never changed during that series. Thomas Riker is seen in the TNG era uniform with the new combadge but should be with the previous style combadge since the Enterprise crew never updated theirs. This also shows the in-continuity between the different types of uniforms used that has never been explained.