Dear Kristin: How can I type people in the wild?

Today I answer a question submitted by Kennedy, who asks how he, as an INTP, can learn to type people in the wild. I go into some of the tells that I've picked up as an Se dom that reflect what cognitive functions somebody might be using. 

If you're unfamiliar with the cognitive functions and need a crash course, check out this video:
https://youtu.be/uzNWdRgGdJg

Theme music by Restless Mosaic.