Please express this succinctly when talkers like me "get going" – I appreciate that not everybody wants these brief connections (you won't hurt my feelings with a simple "hey I'm not really much for talking").

If you prefer wordless silence, pulling out a phone (or book/magazine) works well when talkers "don't take the hint;" or face away (for particularly invasive conversation starters).

My hope is that small talk leads to shared connections, perhaps even (a brief intertwining of) humanity.

So everyone else should suffer because you don't want to politely decline?