(Yahoo!) - Lindsay Lohan is ready to talk ... but in a sneak peek of her much-buzzed-about interview with Oprah Winfrey, she doesn't utter a word.

A promo clip of the sit-down, which will air Sunday, August 18, as part of "Oprah's Next Chapter" series on OWN, has been released and it's a big tease. The 27-year-old, who left rehab last Tuesday, looks glam in a bright orange dress, minimal makeup, and her straightened hair pulled into a tight ponytail. However, we don't even hear her voice.

"Are you an addict?" asks Winfrey, who is an expert at asking the tough questions.

Winfrey is then heard asking, "What does it feel like to be both an adjective and a verb for child-star-gone-wrong?"

While Lohan is just seen sitting silently batting her expertly made-up lashes in the 15-second spot, she will have the floor — and apparently have to tackle the tough questions — when the interview airs later this month.

This chat is just one part of her post-rehab comeback publicity tour. It really kicks off tonight when she serves at guest host of "Chelsea Lately" on E! Monday night. She will also collaborate with Winfrey's OWN on an eight-part docu-series that follows her as she tries to rebuild her career and stay out of trouble. That will air in 2014.

Will you tune in for Lohan's interview? Think it will be revealing or same old, same old? Weigh in below.