Cultivate social spontaneity. This one is hard to define, so I'll give an example. I was waiting for a bus and a woman I'd never met before in an awesome homemade knitted cloak tottering along on crutches said she loved my jacket.

WARNING. If you're male and you attempt to talk to a woman on public transportation, you may very well end up making her extremely uncomfortable. This xkcd comic triggered a major backlash.