Crowd round
Definition 1 of 2
Pro Tip 1/3Eager Intensity
Used when people show excitement or strong interest in something or someone. 
At the comic book release, fans crowded round the author.
Pro Tip 2/3Physical Closeness
Implies a lack of personal space due to enthusiasm. 
The kids crowded round the magician, trying to get a better view.
Pro Tip 3/3Not Always Positive
Can suggest overwhelming or unwanted attention. 
The celebrity felt overwhelmed as her fans crowded round her.