You might offer to be an assistant to a leader as way of learning and being a support (we can all use support, yes?). When you are ready, take your turn at leadership. Seek out a well-rounded experience of congregational life.
Consider formal leadership. Committee leadership and elected positions (e.g., Board of Trustees) are reserved for formal members. This is based on the assumption that serving in these capacities requires are certain level of commitment.
If you have questions, have a chat with the program leader. You can also speak with our Program Assistant at 1U Central (our welcome and information table) Sundays during social hour after worship services.