You know your Miracle Whip from your mayo, your Boca from your burger. And your closet? Nary a knockoff in sight.

But even you know that there times when faking it is the best policy.

To wit: lash extensions by Dionne Phillips. The two-hour procedure is painless — and the outcome is precious. After you pick from a selection of lash colors, lengths, and thicknesses, Dionne glues individual lashes to the ends of your own.

Can’t commit for fear of the Tammy Faye-ness of it all? Get a few at the ends to open up your eyes. Want to appear to be doing the walk of shame 24-7? Opt for the thick and full version, appropriately titled Party Lashes.

And go ahead, get attached to your new look: They can last up to two months and come off (without damaging the natural lash) in a blink of an eye. This could be your chance to create the dramatic, Brigitte Bardot effect you’ve been going after with basic mascara all your life.

Between Dionne’s expert touch and your convincing demeanor, no one will ever suspect that you’re faking it.

They never have before.

D’Lashes, 9911 West Pico Boulevard, between Roxbury and Beverly Glen Drives, Beverly Hills (310-552-8164 or dlashes.com).