Those Damn Scarves!

I have to admit there was a moment yesterday when the sun was shining and there was no shade I forgot it was winter. Then night hit with a chill and I remembered. Too bad I forgot my scarf. Speaking of which, how the hell are you supposed to wear them? Some people twist and turn them so they stick out from the neck like a thick third arm, others manage to wrap them so they blend seamlessly between the coat and whatever's underneath and there are those who seem to look casually cool. I can achieve neither because I'd never worn a scarf before I came here. So my question again is - How do you wear a scarf?