The first agent that was sent up to me in 2017 was very graven. Completely serious, very very serious. He explicitly said "Mossad is here" after some other things.
The second agent (I am pretty sure, not confirmed here) they sent up to me in 2019 was bright, smiley, and looked at me with respect, almost "awe", not the right word but.. Like he was both happy to see me, and impressed. Which, as a civilian who engaged intelligence agencies, got an op run on him, survived and continued to engage them, makes sense. They must have thought I was extremely stupid for trying, but brave as hell, funny, and inventive. So his demeanor makes sense to me. He did not say anything except asking me for a lighter at the end, but the interaction was very much "This is an agent motioning to you that he is an agent".
Both engagements occurred in libraries (in different provinces)