Jennifer Lawrence and Nicholas Hoult leaving The Little Door
05/01/2013 AT 07:50 AM EDT
Less than four months after their January split, Jennifer Lawrence
and Nicholas Hoult enjoyed a cozy dinner at The Little Door in Los Angeles on April 29.
"They arrived together," an observer tells PEOPLE about the couple, who are both now shooting the X-Men
sequel, X-Men: Days of Future Past
Notes another eyewitness at the restaurant: "It looked like a date," though they weren't openly affectionate.
The Oscar winner
, 22 and the Warm Bodies
actor, 23, who first met on the set of X-Men: First Class
, had kept their two-year relationship
relatively low-profile, enjoying surfing sessions and games of basketball.
The usually private Lawrence gushed last year about her then-beau: "[My boyfriend] is honestly my best friend, and hopefully I'm his best friend, too. He's my favorite person and he makes me laugh harder than anybody."
Reps had no comment regarding the reunion – so, for now, only time will tell.
Reporting by PERNILLA CEDENHEIM