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was with a big group of people on Tuesday when she came out to New York City eatery Beauty & Essex, though she mostly kept to herself.
"She only had a scotch on the rocks," an onlooker tells PEOPLE of the mom of two
, who didn't order anything to eat. "She was at a table of 10, but was seen texting most of the time."
Although she kept a seemingly low profile, the actress's typically notable style didn't go unnoticed.
The source says Alba was wearing a high-waisted print skirt, espadrilles and a white Louis Vuitton bag. – Jennifer Garcia