Some people get talkative when they've had too much to drink. This guy, though, handled his liquor quite well. The more he drank, the quieter he got. When he was down to just grunting in response, you knew he was about done.
He was still fine for now. The fact that he could still chat, laugh, and egg on a few of his brothers to toast the elders meant he still had a ways to go. Still, drinking was bad for your health. It was better to drink less if possible.
When Xu Changqing saw that Shen Hui intended to run interference, she certainly didn't object. It would be a lie to say she didn't have her own motives when she'd told Shen Hui that Shen Weimin could handle half a liter of liquor.
The truth was, even she didn't know what Shen Weimin's current limit was. For the sake of his health, she didn't dare let him drink too much either.
