Tanit: «Does your verb has an agent? Or maybe does it describe a state?»
Yes and, as I have already said, it describes a set of actions, not a state.
«Are sounds (be they laugh, cry, shout etc.) associated with your word?»
Sure, but they are quite quiet ususally. One sound is somewhat like a gentle rolling "RR...rR, RR...rR,...", and the other is even more faint and resembles very short clicks which you may hear when playing a vinyl disc (or an audio cd, containing a carefully remastered old recording), or the sound of a thin thread being torn... While the first sound is almost always present, the latter may be lacking.
There may be other sounds but I don't dare to try to describe them.
...Looks like I have revealed too much, HTH.