Regarding your question about the dancing, the dancing should be done enthusiastically by raising the hands like Panca-Tattva. You can also dance enthusiastically by raising hands. All of Lord Caitanya's followers used to dance with raised hands. If someone dances with ecstasy, that is all right, but it is better to dance with raised hands.
Letter to Kirtanananda Swami, 10 November, 1975