We learn at the end of the scene that Levene, not Aaronow, has gone in on the robbery scheme with Moss, which makes Moss's "Fuck the Machine" outburst interesting. On one hand, Moss risks raising suspicion by acting uncharacteristically kind to Levene—but on the other, his genuine disregard for Levene suggests that their partnership in this robbery venture does not have a bright future. Like everyone in the play, they are looking out only for themselves. Because of this, it seems inevitable that eventually one will betray the other.
Roma's encouragement of Levene's storytelling comes off as almost sweet, particularly his suggestion that Levene taught him everything he knows about sales. This lying comes across as good-natured, precisely because it is obvious that Roma does not really consider Levene a mentor. It appears that Roma treats Levene nicely out of pity, or because he has no reason not to. In a dark world of scams and backstabbing, Mamet is letting in a little bit of light. At the very end of the play, however, when Mamet reveals Roma's ulterior motives, even this small consolation is taken from us.
Levene's description of the sale to the Nyborgs amuses with its brutality. Levene introduces his tale of conquest with, "The old ways convert the motherfuckersell himsell himmake him sign the check." Levene describes selling as a contest of brute force. The climax of his anecdote, in which he gets the Nyborgs to sign, ends, "They both kind of imperceptibly slumped." Levene feels he succeeds as a salesman, it seems, when he defeats his clients. His outrageous hard sell to the Nyborgs diametrically opposes the slick sneak attack method that we have seen Roma use on Lingk.
Levene, emboldened by his sale and by Roma's support, feels confident enough to insult Williamson. He would never have been so insolent to Williamson the previous day at the restaurant, but now he feels like he has the upper hand and can get away with saying anything he chooses. Again, we see Levene's desperate tendency to latch on to any illusory feeling of success that he can muster. We sense that though it may feel good to Levene to unload on Williamson, this outburst will come back to haunt him very soon.