Introvert is obvious; when asked a question on camera, they tend to look within themselves for their answers and often with Si types, not only looking away and within but also sensing the feelings derived from answering and the questions being asked. Thinker because he has a method of answering...that probably gives away his type.

Extraverts have the answers out and will talk about it quickly, responding fluidly and consistently engaged with the camera as if it's a person or looking at the interviewee with curiosity, expecting the next question. E types also offer a lot of extra information, talking way more then I types. E types try to fill in the answers, they will be quick to make statements where you haven't thought of them for example, a friend was upset that her friend was marrying too early in her relationship, an ESTp stair right at her and said "Well, she's probably doing what makes her happy right?" Introverts don't think ahead like this. They think in themselves with the material given after self evaluation with subjective functions, then will respond.