Activities are a section of the Signature option in Group Attendance.
Tagging activities acts as a confirmation that a student was present during a specific check-in time. Selecting AM, for example, would mean that the students selected were present during the morning. Selecting Lunch would mean that the students selected were present during their lunch break. The activities available may vary from school to school, depending on your administrator. Activities may be added from the online portal, which administrators are able to modify.