Bucky knows Steve maybe even better than he knows himself, and so he knows exactly what that slight shift of weight means. He also knows that Steve is stupidly dumb when it comes to matters of his own safety, and if he's decided that Bucky needs a slug in the jaw then he'll deliver one even though he's a skinny asshole and Bucky is six feet tall and army trained.

His own body language shifts too on instinct. He would never have defended himself from Steve in the past, let alone fought him back, but now his whole posture is radiating danger. He doesn't know what will happen if Steve touches him, tries to hit him, but he's willing to bet that it won't be pretty. He laid out four orderlies in the army hospital who came up on him without warning, and that was half sedated and down an arm.

But something changes and the fight slips out of Steve, though it's replaced with that stubborn set to his jaw that Bucky knows all too well. He doesn't want rid of his friend, now that Steve is here he wants to drink in the sight of him and never stop, and at the same time he wants to disengage before it all goes really wrong. This isn't the fight he wants to go down for, though, and he can see Steve isn't going to be dissuaded and so he shrugs.

"I was just going to the bodega, I only need a couple of things and it's closer than the supermarket."

And quieter.

"You still working at the supply store?"