She's been coy about her private life since splitting from long-term boyfriend Nicholas Hoult, and never commented on her brief relationship with Gwyneth Paltrow's ex Chris Martin, which ended in 2015.
The. 25-year-old actress giggled as she held onto the long curly-haired gentleman as they left the Line Hotel in the Koreatown district of the city.
The Hunger Games star looked radiant as she laughed alongside her companion, who seemed surprised by the attention.
Showing off her slim figure in high-waisted black trousers and cropped cream sweater, the Joy beauty cut a relaxed and happy figure.
The pin-up was distracted by her phone for a time - perhaps arranging her transport from the hotel, before turning her attention back to the gentleman.
Her belongings were carried in a patterned chain-strap bag, and she donned flat black brogues.
Her blonde bob was in tousled waves and she appeared to only be wearing minimal make-up, glowing with her natural beauty.
The mystery man was casually clad in blue sneaker and black jeans.
He teamed them with a pale grey sweater over a black top.
The star had joked in January that she is now officially a virgin because guys don't ask her out.
She also told Glamour magazine that she has unusual taste in men.
'I’m picky,' she explained, 'I feel a spark very, very rarely. And it’s really only about spark for me. Not really anything else.
'You should see some of the people I find attractive. You’d be shocked'.