Running dry on ideas? Only see “repetition” and the tone in one character’s lines? Really can’t find anything to say?
To develop your analysis of one point, you can think about the progression of a character / persona’s tone or effects — how the tone intensifies or shifts — while close-analysing the “key points” or “turning points” in the progression.
This close analysis means you have to: (i) explore the quotations in finer detail, looking out for nuances / minute differences (e.g. the reference to “Dad”); and (ii) explore the effects in finer detail, looking at how “desperation” is “not-so-desperate” early on, or how a patient appeal can escalate towards a firm demand.
Here are a couple of figures that might help, especially if you’re in the graph-plotting crowd. Evidently, I am too. 😉 Examples below are taken from the Proof (2000) extract in Paper 3 CA4.