Isserley always drove straight past a hitch-hiker when she first saw him, to give herself time to size him up. She was looking for big muscles: a hunk on legs.
-- Narrator (Chapter 1)

Importance: This opening quote indicates how careful Isserley is in choosing the men whom she picks up. The indication is that she is looking for a man who is ideal for sex appeal but it turns out this is not really why Isserley is carefully choosing her men.

She was a weird one all right. Half Baywatch babe, half little old lady.
-- Narrator (Chapter 1)

Importance: One of the men whom Isserley picks up describes her in this way. Her breasts remind him of the Baywatch babe while her seating position in the car and her thick glasses are like those of an old lady.

Vague tattoos disfigured his lean but powerful forearms: skin deep, she reminded herself again.
-- Narrator (Chapter 2)

Importance: When Isserley spots a man who...