The only way Colby would touch him with the others around was the slightest overlapping of their fingertips when he handed Charlie a cup of coffee. It was sweet, in it's own way, that Colby didn't remember that if he was supposed to be pretending they weren't seeing each other, he probably shouldn't get Charlie coffee to begin with.
Charlie drank it fast, burning his mouth and numbing his tongue, drinking cup after cup until he couldn't control his tapping feet and everything smelt the same. Working, yes, but also counting down the sips until Colby would touch him again.