The sudden movement and crash of splintering crockery has her hand dipping to her sidearm and her back to the wall in less time than it takes to blink –

Only for her to relax once she sees who it is. "Buck," she says, holstering the gun and walking towards him with a pleased smile. "Hey. Have you seen Steve? I was supposed to rendezvous with him, but – "

She gestures around herself at the place that is obviously, demonstrably not Avengers Tower, then casts a crooked grin at him. "I shouldn't have taken that left turn at Albuquerque."

The grin vanishes as her gaze tracks downwards, though, and she frowns at the shattered coffee mug on the floor. "A little tense, aren't you?"