Merry Christmas, Happy Hanukkah, Enjoyable Kwanza, and peace on earth and goodwill towards men. Exept when they're infected with a mutated rabies virus, controlled by a parasitic alien, or are a brain-washed cyborg. MERRY CHRISTMAS TWHL!!!!!
It's Midsummer soon. If you want to celebrate, get some friends or family together, have some nice food - whatever you usually eat at Christmas or Easter works - out in the garden or a park, eat strawberries with milk, drink some snaps, stay up until next sunrise. You can wear your local traditional dress or dance around a pole but those things are entirely optional and frankly too much effort. There is no wrong way to celebrate Midsummer Eve so long as you spend the day with people that you like and sit outside if the weather is nice.
Merry Christmas!