I used to wonder why people were not more friendly, so instead of just wanting/waiting for people to talk to me, I decided to go for it.
Anything from (sincerely) complimenting a persons outfit to chit chatting with someone on the bus or at a store. Almost everyone has been friendly in return. Only ignored two times. Not bad.
I’m going to keep doing this. Missed about 4 days … and on those days I chose to comment on photos from people I didn’t know on flickr (better than not doing anything.)