Because finches rely on flight to escape danger, they feel vulnerable when confined. The section that follows on communicating verbally and visually will help you reach this goal. However, if you want to accomplish more than this, try some of the following taming techniques. The ability to tame small birds depends on being able to communicate with them, because they must understand that you are not a threat before they will trust you. To accomplish that, you have to communicate your intentions through voice, behavior and appearance.
Birds rely on sounds for survival.
They become accustomed to certain sounds that they learn are safe, while unfamiliar sounds trigger alertness, caution and fear. Since predators approach silently before lunging at their prey, birds fear sudden noises and movements, so it should be clear that birds appreciate hearing you approach from a distance. As you approach, make the same sounds each time. It doesn't matter if you talk, whistle or jingle your keys, as long as the sounds are consistent each time you visit. When birds communicate with each other, they use tone of voice and loudness to clarify meaning.