With his father still glaring venomously at him, Alice tosses a quick glance at someone who isn't looking and touches his tongue to his lips for a moment, tilting his head down and lifting his eyebrows slightly. It's hardly an overt or remarkable gesture, but it has the desired effect, which is to send his father into a frothing, spitting, incoherent rage and prevent him from coming to his senses and sitting down again.