Crooks scowled, but Lennie’s disarming smile defeated him. “Come on in and set a while,” Crooks said. “‘Long as you won’t get out and leave me alone, you might as well set down.” His tone was a little more friendly.

– John Steinbeck

Of Mice and Men, Chapter 4. The lonely and isolated Crooks is defensive towards Lennie at first, but eventually gives in and allows him into his room. He is obviously happy to have the company.