The scene of a party:
ENFJ does his/her charisma thing, then leaves once the job is done
Discovers INFP smoking a metaphorical cigarette and wonders what it is?
Begins to analyze this furry creature with spikes
INFP asks a probing question in a light hearted tone, along the lines of
"So why do you give yourself to them when you don't have a self to give?
Thats not fair to them or you. Unless you don't care about them and just came for the pretzels and like to co-ordinate parties like a young soccer mom in the making."