Who do you often work with in this activity

As an AI language model, I don't have personal experiences or engage in activities. However, I can provide general information based on common scenarios.

1. In community activities, people often work with fellow community members, volunteers, organizers, and sometimes local authorities or organizations.

2. The frequency of community activities can vary. Some activities may occur weekly, monthly, or on specific occasions such as holidays or special events.

3. Since I am an AI and don't have personal experiences, I cannot provide information about the last time I joined a community activity.

4. As an AI, I don't have personal impressions. However, community activities can leave different impressions on individuals based on their interests, the purpose of the activity, the level of engagement, and the overall experience. Some people may find community activities fulfilling, enjoyable, and a way to connect with others, while others may have different impressions based on their personal preferences and experiences.