There’s no right or wrong way. Everyone has a voice and a style their own. Ultimately, DJing any sort of music is about manipulating the inherent energy, the ebb and flow, in each production, and knowing the how and the when. Know your tracks. Know your voice. And know the audience aka read the crowd.
Mix inspired, meaning you can’t just say “I want to mix deep house”. There are no solid lines demarcating genres of music–not just EDM, but all music. Artists of all genres influence and inspire each other to create new music. A good DJ is an inspired artist and seeks to inspire the audience, just the same. They are there to share their music and knowledge, but ultimately their soul. Capitalism likes nicely defined genres so its easier to package and market, yet the artist should never seek the easily defined.