Hollywood’s coolest A-lister Keanu Reeves was spotted in Alameda Monday, having a nice time eating an ice cream cone he is said to have picked up at Baskin-Robbins.

Reeves, 55, was noticed by two Twitter users, identified by NBCBayArea as Jose De Leon and Yahoska Martinez. At first the two weren’t sure that the guy in the suit jacket, and sporting the actor’s signature shaggy hair and beard, was Reeves, the star of such movie blockbusters as “Speed,” “Toy Story 4,” and “The Matrix” and “John Week” series.

One of them videotaped him, sitting on the side of a concrete planter, enjoying what looked like a double scoop of a flavor that could be vanilla or some variant.

A followup photo confirmed that the guy was indeed Reeves. Reeves, per a well-known habit, graciously posed with Martinez, who tweeted, “He was super humble and super nice!! Very chill dude.”

Reeves is said to be in Alameda filming the fourth “Matrix” film. Variety said  that production for the film was set to begin at the start of 2020. SFist, citing San Francisco Film Commission records, said a major film project with the working title — yes, “Project Ice Cream” — was scheduled to have shoots in the city in February.

Alameda and Oakland also offered locations for 2003’s “Matrix Reloaded,” the first sequel in the franchise, SFist said. Car chase sequences were filmed in Oakland and Alameda, and the film’s “reviled” rave scene was shot at the old Naval Air Base hangar in Alameda, the site added.

Hmm. Could Reeves have been having fun with his film’s “Project Ice Cream” working title with his Baskin-Robbins’ outing? Who knows?

But the famously private star has developed a reputation for turning up in unexpected places where he has no problem interacting with regular people. In those interactions, he always acts friendly, modest and mildly amused and detached from his own fame.

Last March, he proved that he was not a typically fussy movie star when he ended up stranded at the Bakersfield airport after his United Express flight from San Francisco to Los Angeles airport — a commercial flight! — had mechanical trouble.

Rather than play put-upon diva, Reeves took the lead in helping his fellow passengers figure out the best way to complete the final 100 miles of their trip. He also allowed his fellow passengers to take photos and videotape him calmly problem-solving the situation by suggesting they all “hit the road” and take a van.