Mauricio Umansky certainly knows how to show a lady a good time ... chatting up a woman at a private, members-only club in New York City.

The reality television star and real estate mogul was spotted at Casa Cipriani Manhattan Saturday night ... keeping it casual in a black button-down TMZ.com

Umansky's chatting with a group ... but he seems particularly interested in one woman -- getting cozy with her while each of them sipped on a drink.

Unclear if there's anything really romantic going on here ... but, it wouldn't come as a shock 'cause Mauricio's regularly surrounded himself with gorgeous young women since he and his longtime wife Kyle Richards split in 2023. Gallery Launch Gallery Getty

Umansky's been seen on sushi dates, European vacays ... or even just packing

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