Board Thread:General Discussion/@comment-203.129.23.222-20130906131117/@comment-3257939-20150601204535

Yeah. Essentially the abilities they use are natural. One way or another, those are activated depending on the situation. I can imagine Yang getting into a fight during and then realizing that her hair was growing more and more with each attack she received or Ruby going on a jog and then bam! She's running at an incredible speed or even Pyrrha noticing that all metals are being attracted to her and generating electrical waves.

I bet Jaune's Semblance is also something natural. He could be fighting someone, then, his enemy launches an attack that Jaune can't dodge nor stop and embraces himself for the attack, only to realize that it had no effect on him.