Re: Bucky/Dean...?
Bucky noticed Dean long before Dean noticed him, but that wasn't exactly difficult. Even with his out-of-season clothing Bucky just looked like another person and Dean clearly was not.
He didn't look to Dean when he approached, instead, he favored continuing to look out over the crowd. He wasn't really trying to be rude, but he wasn't trying to be particularly friendly either. And Dean's shouting didn't help his headache.