Richard smooths out an area of sand next to Jimmy into a neat, flat circle before sitting next to him, knees hunched up into his chest, the position looking a little inelegant because of his height. He takes a long drag on his cigarette, looking out to the sea, the horizon drawing ever closer as the sun set behind them.

"Could be anything. ... Don't trust him."

Meaning that he didn't trust him, not trying warning Jimmy not to, although the double meaning worked just as well. It pained Richard to speak for long periods at a time, so short clipped sentences suited his purposes most of the time. When he did speak at length, he tried to make every word count.