rub shoulders with (someone)

Translations
общаться с (кем-то)
At the gala, we had the chance to rub shoulders with some celebrities.
На гала-вечере у нас была возможность пообщаться с некоторыми знаменитостями.
Definitions
To associate or interact with someone, often in a social or professional context, typically implying a level of familiarity or camaraderie.