Jennifer Lawrence reveals her two most embarrassing moments.

But face-plants and public tumbles aren’t the most embarrassing things to happen to the star.

Appearing on The Tonight Show this week, she opened up to host Jimmy Fallon about her finely tuned ability to embarrass herself.

She shared two mortifying stories that she’s never told anyone, including the time she had a conversation with an old woman she thought was Elizabeth Taylor.

“In my head I just went, ‘This is a Elizabeth Taylor’ ... who was dead at the time. Who’s still dead!” she said.

“The whole time she’s talking to me, I’m like, ‘Oh, my God! This is Elizabeth Taylor!’ She’s complimenting me! I was like, ‘Me? No! You!’ Your movies that I can’t name and your fashion moments that I don’t know! I was like, ‘You’re unbelievable!’”

But after a while, she realised her mistake.

“My friend walked by and grabbed her and I was like, ‘This is Elizabeth Taylor!’ And she was like, ‘No, it’s not!’”

She didn’t know what to do, so she “just took off running.”

Her second most embarrassing moment, she revealed, was when she was dining in Paris and she saw director Francis Ford Coppola dining with a group of people.

“I started walking and I noticed I was barefoot, but I was like, ‘Eh, they probably won’t notice’,” she said. “So, I’m barefoot, and I, like, introduced myself, said, ‘Oh, I’m such a huge fan! The Godfather! Ah!’

“And then went on and introduced myself to the whole table, ‘Hi, I’m Jennifer Lawrence.’ They had no idea who I was. Then, I went back to my table, and my entire dress was unzipped, and my thong was out. So, I was barefoot — and my whole ass was out.

“I think I was making room for my gut and then I unzipped the whole thing and forgot ... I thought the shoes were going to be the problem.”