What are the Nature Characteristics in Pokemon D/P?

You how there’s, “Likes to run”, or, “Alert to sounds.” to natures, so, eh, what do they mean? I already know about Nature mechanics (Atleast from the GBA ones. ), EVs, IVs, whatnot, so I don’t need a whole essay on those. Just on, what stats the characteristic effects. (All I know is “Alert to […]