I don't use clickers or sticks or anything, I use words and movements. To train them to fly to me, I start by putting the bird on a table and I sit down next to it. I tap my right arm with the fingers of my left hand and call the bird's name and give the command (for example: "Sophie, come!") Immediately after I tap my arm I hold my left hand on the other side of my right arm (so my right arm is between the bird and my left hand) with a treat in it (like a sunflower seed, for example) so the bird needs to step on my arm to get to it. Once I get the bird to do that every time and without hesitation, I start moving my arm away farther and farther from the bird until the bird has to walk the length of the table to get to it. Once I get the bird to do that, I start holding my right arm in the air next to the table where the bird is standing, once I get the bird to jump onto my arm, I start moving it away farther and farther so the bird has to take a short flight first, then longer and longer. If you do this and you make sure the bird follows the command every time before you move on to the next step, you can get the bird to come to you from anywhere in the house.