As the name indicates, at the 1st of April, its not just the April Fools' Day, but also the day that in the Northern Tradition Paganism, it is celebrated the Lokiblót to honour the God Loki.
This was not a celebration held in the ancient times, it is a new one that came with the NeoPaganism. In My opinion, i do celebrate the ancient traditions and celebrations, and i dont give too much heed to the new ones, but this is a good day to show you the importance that all Gods have.
There is no such thing as Evil Gods and Good Gods, and most of the time, people tend to see Loki as the Evil one, like the Devil or Satan in the Christian myths, but this is not true, all Gods are important, all of them have their powers and purpose.
Loki is the god of mischief, of fire, and a very cunning god, and we all need to be cunning in this world, in order to survive the mischief of others, we have to workout our minds or we will be "eaten" by the society. Loki is also a shapeshifter and also we have to be like that many times in our lifetime, not like Loki of course, we do not have those powers, but shapeshifting in a diferent way, to shape our personality and tastes sometimes, in order to fit into some work, that we realy need, or to be happy in places we hate to be but we must, for exemple, working in an other country, we must do that, but the native people in it are of our dislike, or the weather isn't that great, but we have to change in order to survive that and be happy with it.
I have talked about Loki in my blog for many times, you can see it in the labels such as "About Shamanism" , " Gods and Mythology" and even "Northern Pagan Traditions". A curious thing is that the post that was read the most in my blog, was the post that talks about Rökkatru, as you may well know, it is for those who work with the deities such as Hella and Loki etc. So people are realy interested in that.
As i have talked about Loki so many times, i leave you here a brief text so that you may know how to work with him:
Loki will work with men, women, and third gender people happily, although he prefers to have sex in a body with a working natural phallus. He will eat fast food, junk food, candy, booze (especially spicy food and booze with cinnamon or red pepper in it) and likes to have a table full of weird toys that he can play with, the weirder the better. He has been known to bless whisky and tell people to add it to their bath water or pour it over themselves in the tub, which is at least kinder than the Afro-Caribbean trickster spirits who will spit rum on people.
Any page assigned to Loki has to have a wacky sense of humor, not be easily upset or offended, and willing to give him their full attention and be a sort of "chew toy", as one spirit-worker referred to the job. Make sure that they know that it's not their job to prevent him from doing ill-advised things, except as a matter of self-protection. Getting in Loki's way is the dangerous job of the priest/ess, who should be another spirit-worker with a good enough relationship with Loki to be able to make noise, or perhaps one of Hela's who can call in his daughter to ride herd on him (something that actually works sometimes).
In general, though, it's not about confrontation as much as redirection and distraction. Loki has a short attention span and this can be exploited, although don't think he doesn't know what you're doing. Nobody ever gets one over on Flame-Hair. If he goes along with it, it's because he feels generous or thinks that it's worth it to him, perhaps for the new toy, or the entertainment value of watching people jump to distract him with new toys.