cause a stir
cause (quite) a stirand cause a commotion
to cause people to become agitated; to cause trouble in a group of people; to shock or alarm people. When Bob appeared without jacket and tie, it caused a stir at the state dinner. The dog ran through the church and caused quite a commotion.
cause a stiralso create a stir
to cause unusual interest or excitement Rufus was arguing with his older daughter about her boyfriend, and it caused a stir in the family.
Usage notes: often used with quite for emphasis: Her latest novel has created quite a stir.
cause/create a stir
to cause a lot of interest and excitement Emma caused quite a stir in her little black dress last night.