Hermione flinches and gives an overcompensating smile to throw them off. She clearly forgot how drunk she was and ends up just looking absolutely unhinged, causing Pansy to politely say "Granger, please stop smiling before you scare the rest of the tables away." Herrmione comes back into her body, realises she’s acting like a loon, and just nods at Theo. "Please keep this to yourselves, I’m not ready to talk about it or have Rita bloody Skeeter in my business." 