maybe it's that expression. But he's Fi. He works in a small school owned by a noisy Beta extrovert guy (probably sle) and handles the marketing part. Next to him he's extremely discrete and silent, communicates mostly through actions and eye stare (it makes me think of ESI descriptions : regulates distance by tone and look). Not very personable in a "fake default Fe" way with strangers or potential clients, talks only about required info ..as if he didn't even have any interest to sell anything. But yeah, I think he's unlikely to be a Logical type.
Pretty darn NF -ish. I thought ESIs were supposed to be judgmental?
well considering you also type yourself ILI, I'd say IEI is a safe bet for this guy.