I'm not practised at speaking to strangers. Twice in one day someone new spoke to me, just to comment about the bus situation. Each time I made a bland sort of "Oh well" comment then went back to my MP3 player, just staring into space.
I just don't know how to handle small talk situations.
"The bus is slow today."
"Yes. Yes it is. ... It was also slow yesterday."
Mokalus of Borg
PS - It's just awkward.
PPS - It seems only a small percentage of people are good small talkers.