i wouldn’t recommend doing this around your regular haunts, but occasionally i’ll pretend my life circumstances are different to strangers in customer service interactions, just for my own laugh. example: i’m buying 2 gallons of goat milk at the farm stand, the woman behind the counter says, “that’s a lot of milk!”, i reply, “i have family to feed” (i am unmarried and have no kids).
OR
i walk into a lamp to store check the price of a stained glass rooster lamp. the owner says ”135”, i say, “okay cool, going to go run it by the wife!” (i’m gay).
typing this out makes me realize this will really only ever be funny to you and will only be fun if the false identity is so far from who you are. if you’re just gassing up aspects of your life then it becomes weird and maybe psycho.