At the beginning of the play, Priestly uses stage directions to present Eric as 'half shy, half assertive'
'Shy' connotes nervousness and lack of confidence, while 'assertive' implies confidence and dominance
Priestley wants the audience to view Eric negatively to show that the capitalist patriarchal society is not trustworthy
Priestley repeats the word 'half' to emphasise that Eric's character is not yet fully formed, indicating that he might change
Priestley associates Eric with alcohol when Sheila accuses him of being 'squiffy', indicating the siblings' fashionable adaptation to language
Eric's free use of alcohol signifies the double standard in society for men and women
Eric admits to being 'in that state when a chap easily turns nasty' due to alcohol, showing his lack of responsibility for his actions
Eric refers to himself in the third person with the phrase 'a chap' to distance himself from the implied rape and avoid responsibility
Eric's perspective about Eva suggests she was living a life on the brink of prostitution, without explicit mention of prostitution in the play
Eric takes responsibility and admits his guilt, showing distress through short sentences and a lack of detail
Eric admits he cannot go to his father when in trouble, positioning himself as a victim and avoiding responsibility
Eric's immaturity is shown by his short-term solutions and lack of understanding of the long-term consequences of his actions
Eric, like Sheila, learns the lesson of collective social responsibility by the end of the play
Eric insists 'We did her in all right', using 'we' to emphasize collective responsibility for Eva's death
Eric accepts his role in Eva's downfall, prioritizing the inspector's socialist message of collective responsibility over the inspector's identity
Throughout the play, Priestley presents Eric as an immature young man with a drinking problem, an exploiter of Eva, and a thief
As Eric matures and accepts responsibility, he becomes receptive to the inspector's message that 'We are members of one body. We are responsible for each other'