C. Religion Most of the religious aspects apply equally to small groups. Before is OK, worked into the content is better. Explain purpose if other than celebration. Make UPs feel welcome. Involve the UPs.
Movement is especially good.
Songs, chants, and call-response are other methods. Rehearse chants or songs the UPs are supposed to do. Internalize the ritual instead of just memorizing it so you are open to improvising and moving with the energy flows. If a ritual is particularly complex, or long, plan for choices or omissions depending on how the energy's going. Critiquing during or immediately after a ritual can drain the energy.