Amanda Bynes partied alone in New York on Thursday (5 December).
The troubled actress arrived at nightclub SL 1.45am and danced with a stranger before leaving with some people she had just met.
A source told E! News: "She was alone, definitely like...walking into people, she looked just zoned out of her mind and randomly dancing with some guy.
"We were, like, 'Can we get a picture of you? You're Amanda Bynes?' And she said, 'No, I'm not and I don't want my picture taken.'
"We wanted to go to Avenue after SL, so we walked there. On our walk, we saw her again with those people, just stumbling. I felt so bad for her. I've never seen anyone like that, zoned out. So we walked into Avenue and I just saw her walk into [popular hangout] Artichoke. She just sat in a booth by herself and that was the end of that."
Amanda - who is currently launching a fashion line in New York – was outraged by recent report which alleged she walked around a tanning salon naked and insists she is completely fine and is simply a "retired multi-millionaire".
She said: "I'm not troubled. I don't get naked in public. I'm 26, a multi-millionaire, retired. Please respect my privacy."
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