Harlequin seems to have a carefree attitude to what most think; he can be sadistic and also quite teasing as well. Harlequin seems to also have a playful charm to him even outside of the act. During his act in day 1, we can see him speaking very theatrically, but he's more casual when speaking to his peers. At first, Harlequin doesn't seem to be that interested with MC, he's more interested with the idea of messing around with Pierrot, but depending on how the MC acts there's a possible chance that he'll fall for them eventually. Harlequin seems very comfortable with being seductive and handsy around MC, he doesn't really care if MC takes interest in Pierrot more since his intentions weren't only to take them away from Pierrot but also to see Pierrot's reaction, but he does get surprised (or maybe even satisfied) when MC chooses him over Pierrot. Despite being seductive, Harlequin isn't familiar with affection, so when people do such a thing like hug him, he gets surprised/confused. Harlequin's also known for being risky just for the sake of seeing how people would react, this is proven that even though he knows how dangerous Pierrot can be, he messes with him, leading to him getting stabbed five times by Pierrot.
