cause a stir
To incite trouble or excitement. My best friend's pink hair caused quite a stir at our very strict school. This band has caused a stir with teenagers all across the nation—screaming fans greet them everywhere they go!
cause (quite) a stir
and cause a commotionto 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/create a ˈstir
make a number of people feel interest, excitement or shock: His sudden resignation caused quite a stir.