In conversational speech, we usually interpret the activity using a message passing metaphor, which imposes a categorical distinction between speakers and listeners. In joint speech, this is usually unhelpful. But sometimes there is a definite addressee, as in this protest video where the citizens chant “Do your job” to an elected representative. The improvisatory nature of the occasion is probably an important feature here.

//www.washingtonpost.com/video/c/embed/82e2479c-f880-11e6-aa1e-5f735ee31334