They'll never Hear You, if You Don't Speak

Axel, a pegasis is quite the quiet one. He's quite shy, and almost never speaks to people. He has never made it a priority to have friends, or become socially involved in anything. He WOULD interact with others, but he decides at the last minute to change his mind, because he thinks that nopony would like him anyway. That his voice does't matter, and that he could never have any influence. He finds out that voice is important, and he uses it in different ways than he recognizes.