Cultivated, maybe, but it will never be quite as good. Fake it? Most folks know a fake when they see one. Besides, that would be dishonest.
No, these are different things.
Faking sincerity or interest in another human being would be dishonest. Being extroverted or 'outgoing' when you're not, while 'faking it' is not *being* a fake, it is just exercising an emotional range youre less comfortable with.
My oldest daughter is really outgoing, and chats up other kids all the time and so, their parents feel we should converse, even though I usually don't want to talk to them (or anyone really). I dont want to be rude, so I have learned to be a little more sanguine and learn some small talk which I never really liked-- I have learned to 'fake it'.
I am not *being* fake by doing so because it is not as though I hate them but am pretending to like them, I would just prefer to be in my own thoughts and not talk, but am talking about weather and their little Suzy's ballet lessons. I don't resent their child's hobbies, I would just rather watch my kids play in peace or with an article in hand.