rubbing shoulders with (someone)

Translations
тереться бок о бок с (кем-то)
At the gala, we found ourselves rubbing shoulders with many celebrities.
На гала-вечере мы оказались плечом к плечу со многими знаменитостями.
Definitions
To spend time with or be in the same place as someone, often someone important or famous, usually in a social or professional context.