mill around
US /mɪl əˈraʊnd/
UK /mɪl əˈraʊnd/

1.
pulular, merodear
to move around in a confused, disorganized manner, often in a group
:
•
The students began to mill around in the hallway after the bell rang.
Los estudiantes comenzaron a pulular por el pasillo después de que sonó la campana.
•
Tourists often mill around the famous landmarks, taking photos.
Los turistas a menudo merodean por los lugares famosos, tomando fotos.