@AnnaGerber I don't remember you wearing anything unusual in lecture. The only time strangers talk to me it goes:
them: aay.
me: aay. How's it goin'?
them: not bad. you?
me: meh.
them: sure hot/wet/cold/windy eh?
me: yeah, too hot/wet/cold/windy
<light changes> k later. take care. yep, ciao.
That or trying for a loony or a toony.
If ever got 'love/darl/sweetie' I'd fall over! :-)