Neville just looked away when she mentioned showering and shaving. He had been showering but not washing his hair or shaving so he didn't really look it. He hadn't told anyone but he didn't know how to shave without magic, even if he had the tools. He'd never had a father around to show him and his grandmother only told him the spell because she didn't want him to look scruffy.
"Bring it. I haven't...I don't like going to the Hall." He wasn't going to mention the fact that he'd only had about five meals in there since returning.