In IRC chats you can "perform an action" with the /me command. It changes the way the text looks so that it's a little more third person and narrative. Here's an example:
chmullig: I'm really hungry sam: You should eat some cake chmullig: You're right, I should! * chmullig eats some cake
However if we wanted to use a pronoun, what would it be?
chmullig eats his cake or
chmullig eats my cake?