Know Why Certain Foods, Such As Truffles,

[when Asked If The Voice Is An Instrument:] Yes, Of Course. Some Are Violins, Some Are Fountain Pens And Some Are Stethoscopes. And Others Are Just Washboards.

The Original Answer Defines Certain Conditions. Anything Else Is A Different Question.

Be Able To Back Up A Car For A Considerable Distance In A Straight Line And Back Out Of A Driveway.

Multi-tasking Arises Out Of Distraction Itself.

Have Enough Sense To Know, Ahead Of Time, When Your Skills Will Not Extend To Wallpapering.