Miquel catches the gesture, feels it long before he sees it. He weighs his options, and while he knows Cesare will weigh it as treason, he decides to abandon the 16-year-old shape he's assumed out of sympathy with Cesare's ghastly throes of puberty. At the same time he lifts his hand, signalling Xellos to desist, for a moment.
"Honourable Xellos, I believe Don Cesare is tired. He has seen much today, much to give him pause and reflect. Please excuse him if his sense of courtesy is severely hampered; it is due to exhaustion, I am sure." He throws Cesare a and you better shut up if you knows wat's good for you, and you surely don't want me to rip you new one; I may not be able to touch you, but I can make your life very miserable if you don't behave.
Cesare pouts and crosses his arms and leans against the wall, his entire body saying "Come on and try."