"Forget what?" Bucky asked, because he was someone who had a well-worn habit of keeping his cards very close to his chest and he wasn't exactly feeling much up to sharing at the moment.
Bucky didn't like how uneasy Dean made him feel. Not because of his looks or what he was, but because he just felt like he knew too much. Bucky hadn't been someone to wear their emotions outwardly in a long time, he didn't like that Dean seemed to know more than he put on. Maybe his whole being dumb thing was an act, maybe he was magic and tried to hide it. Bucky's paranoia had been set off and now he closed off even more.
"It doesn't do anything. It's the same as drinking water." he shrugged and tipped back the rest of the beer, putting the bottle on the table behind them next to the vial, his eyes seemingly trained on the crowd but still watching Dean in his periphery. "It's just habit."