Flashing her cleavage in a low-cut top, actress Lindsay Lohan said she felt "kind of numb" after being sentenced to 120 days behind bars for probation violation.

"It was definitely shocking," Lohan told talk-show host Jay Leno in a taped interview that aired on Tuesday, her first public comments since she was briefly locked up on Friday. "I was kind of numb."

Lohan, 24, greeted by a standing ovation from at least one segment of the excitable "Tonight Show" studio audience, talked with Leno for about 10 minutes on Monday after he had finished taping that night's show.

The top half of her black aviator jumpsuit was liberally unbuttoned, offering an inadvertent peek whenever she gestured with her hands. After the genial chat, she and Leno hugged and then clasped hands while continuing their conversation off-microphone.

Lohan was jailed for five hours on Friday, and will stand trial in June on a charge of stealing a $2,500 gold necklace from a Los Angeles jewelry store. The judge ruled that the theft charge was a violation of her 2007 probation for drunken driving, and sentenced her to 120 days in jail and 480 hours community service. She was released on bail pending an appeal.

It was the latest setback in the actress' bid to revive a flagging movie career, after almost four years of trips to drug and alcohol rehab, and jail.

Leno asked if she ever thought she would end up in court over her latest alleged misdeed.

"Not when I was here when I was 12," she said with a laugh, referring to her "Tonight Show" debut as a freckled youngster promoting her breakthrough role in a remake of "The Parent Trap."

More seriously, she added that her latest run-in with the justice system was "definitely a wake-up call," and that she was "a big girl" who was taking responsibility for her misdeeds.

Lohan attributed some of her troubles to success at an early age. "I think being young and being in the position I was in, you don't really take the time to appreciate what you have, and it is all a kind of whirlwind and people make decisions for you," Lohan told Leno.

"But I am not a kid anymore. I am 24. I have made a lot of mistakes and I recognize that, but I am in the clear now and as long as I stay focused, I will be able to achieve what I want to achieve," Lohan added.

(Reporting by Dean Goodman and Jill Serjeant: Editing by Mohammad Zargham)