Joly, because he is a mature adult, sticks out his tongue. He reaches out to grab Legle's waist and tug him onto the couch, hesitates a moment, and grabs the tablet again. Then he feels like an utter idiot, and grabs Bossuet anyway. Which leaves him leaning very awkwardly on the sofa with no free arm to lean on.

Well, he'd meant to pull Bossuet onto the sofa playfully, not drag him down by main force, but apparently that's what's happening now!