Right. Ron was temporarily lost when Hermione didn't protest, but he regained his senses quickly, pulling her toward the bathroom. Though for as much as he tried to act like he was certain, and ready, he was still nervous. Reaching into the shower, he got the water going, adjusting the knobs so that the water would heat up, and then turned back to Hermione, trying not to get lost in the logistics of his plan.
A shower was simple, after all. He took them all the time. Just, not with her. But he really was an idiot if he was going to mess up the opportunity now, pulling off his shirt, and stepping out of his pyjama bottoms, leaving him in his boxers. Which wouldn't have been as unnerving had he not still had a few bruises and scrapes. But he still looked better than he had, and besides, it was Hermione's turn now.
Stepping closer to her, he thought he'd help in the undressing process, just in case she was nervous too, and so he fingered the hem of her shirt, looking at her as if asking permission.
He wasn't saying anything. He was afraid to, given his history of saying the wrong thing and having things go terribly wrong from there.