1) (выступать наружу) protrude, jut out, stick out
2) (чем-л.; выделяться) stand out, be distinguished (by), be conspicuous (for), be remarkable (for)
он ничем особенным не выдается - he is in no way remarkable, there is nothing special about him
3) разг. (случаться) happen to be, turn out to be, occur, present itself
когда выдался случай - when an opportunity presented itself, when an opportunity occurred, when there happened to be an opportunity