I didn't vote because where I am at, we don't have immediate trains for public transport so my experience is limited to the bus.
I don't start up convos with people and I hate when they start up convos with me. That time is better spent studying or playing my PSP. I had this one lady talk to me about taking karate lessons while I was playing my PSP.....and I had headphones in too. Others feel the need to ask what I'm studying in college. I'm not fond of pubic transport convos and I'd rather stay to myself.