Extroverted introverts are those people who are very frank and outgoing but they also need some time alone. Most of them do not know what type of traits they have. These people can be sometimes completely extroverted and sometimes they would love to stay at home and read all day which shows that they are a little introvert.
Small talk is not very important to this type of personality. It makes them more uncomfortable, especially when it leads nowhere. They want to talk about something which is engaging and meaningful. They want to have a deep conversation and not a casual one.