How does Tom Clancy use imagery in Without Remorse?

Imagery:

She leaned back into the capacious conning chair, leaning against him and making things right again.

"Need a shower bad, he told himself. But he couldn't allow himself one. He'd have to get used to the feeling of a sticky, plasticlike coating all over his body. He'd have to like it, cultivate it, for in that was a part of his personal safety. His grime and odor were part of his disguise. His looks and smell had to make people look away from him, to avoid coming too close. He couldn't be a person now. He had to be a street creature, shunned. Invisible. The beard was even darker now, he saw in the mirror before heading to the bedroom, and his last decision of the day was to sleep on the floor. He couldn't dirty up new sheets."