buzz with (something)
To be full of something or animated due to something, especially something intangible. When I arrived at the town meeting, it was already buzzing with conversation. The kitchen buzzed with activity as the chef and his staff prepared the three-course meal.
buzz with something
Fig. [for a place] to be busy or filled with something. The room buzzed with excitement. The office had better be buzzing with moneymaking activity when I get there.