what my friends do is have a big meal. set a few extra spots for spirits who are visiting, place a candle in the window to let the spirits know they're welcome. then we have a circle. it's gotten fancier over the years, but the main ones, take some water, place some salt in it, draw a cross on our forehead [representing the direction] and a pentacle over our hearts with the water. then wen have cake and ail [sub with whatever as long as their food and drink] then we speak with the spirits. pendulum, Ouija board, runes, tarot, just talking with the spirits. we also do a lot of meditating and if there's any particular spells needed. in the morning we right on a piece of paper something we wish to change in the new year [get rid of a bad habit, more money, better job, whatever] then burn the paper so they're taken to deity for help.
that's a very basic something. there's some articles here with ceremonies, you could take some of the spoken parts and incorporate it into your circle. there's also a lot of fun games you could play, like apple love deviations, or skrying. it's a night for fun, and a lot of deviation since the spirits are at their strongest.