Subordinate clause of "when we laugh maliciously at the little girl, she kicked mike in the shins

a conclusion based on evidence is an example of a. inference

the narrator is saying that the old lady made her feel uncomfortable. you know this because they say "i found that rather irksome", "perhaps it was her being so upright and trim", and "i don't think it was that, because i thought that quaintly pleasant." hope this !