Those forced conversations have a shelf-life because they’re artificial.
Note, rather, how friends converse and how little scripting is involved. When two good friends meet they don’t say their profession, or academic rank, or ask interrogatory questions. They exchange enthusiasm for each others presence and the conversation tends towards exchanges of perspective/experience and reflection thereof. Statement, vibes, counter-statement(?), more vibes.
That kind of familiar, friendly, approach to conversation is always available and short circuits the scripts. It efficiently probes for people who want to talk and what they want to talk about. It also tends to involve a lot of dumb-yet-charming assertions about the current situation, which takes awareness not planning. A ‘sense’ of humour, not a tight 5 locked and loaded. “Fuck, now that’s a lineup…” isn’t a refined piece of social engineering, but it’s a serviceable conversation starter and the least important part if you’re still talking three hours later.