Haha! Omg yes.
Not particularly ENFP, but definitely extroverted. Thing is, I can be perceived as a “shy, serious quiet person” with an apparent resting bitch face only at FIRST. But once I warm up to strangers in a room, got to assess everything and got a feel of everyone—which is quite fairly quickly actually— I am very much so talkative and outgoing.
Even worse when it’s with family and close friends at a party or get-together. However, I need my alone time.
It’s funny, my loved ones and friends get weirded out and comment how I was such a talker and goofball the previous day at a party, but can instantly become this full-out hermit without talking to anyone for days the next.