Do your outfits look stiff and contrived? Do you have a tendency to wear matching pants and saddle shoes?

What you need is a dash of sprezzatura — deliberately calculated nonchalance — to give yourself a more devil-may-care, deshabille appearance.

Here’s a quick fix in three easy steps:

1) When you launder an oxford-cloth buttondown, keep the collar buttoned. As the shirt gets knocked around in the wash, then flutters in the autumn wind as it hangs on the clothesline, the back of the collar will inevitably come out of alignment.

2) Remove dry shirt from clothesline. Don’t iron it. Don’t fix the collar.

3) Put the shirt on and continue through your day as normal, completely oblivious — or at least feigning to be — of your messed-up shirt collar.

Image courtesy of the 1988 film “Mystic Pizza,” in which a married Yalie architect seduces his babysitter with wine, Mozart, and charmingly disheveled shirt collar. — CC