One part, I visual the energy of my Astral FoxFire forming in between my hands. The energy is always swirling, once the energy builds I slowly pull my hands apart, visualizing the energy expanding. Once I get to a point, I compress the energy back down to the normal size. After several passes the energy will be more dense, and the temperature of the air between your hands will increase a bit. It takes a lot of concentration to keep it going. (due to the dynamics of the physical plane of existence.)
Just highlighting this. Can't really put it any better, this is in different words the same way I started learning energy work and this technique is where anyone curious should start.