might be ready to take on daddy duties
, but that doesn't mean he's forgotten how to work a red carpet.
The Safe Haven star
stepped out on Tuesday to celebrate his Moves
magazine cover at TOY Restaurant in New York City.
After "glowing" while speaking to photographers, Duhamel had a low-key evening, an onlooker tells PEOPLE. "He sat in a corner of the restaurant and enjoyed dinner."
At his table: several sushi rolls, shrimp toast cigars, tuna toro and mahogany chicken.
Duhamel and wife Fergie
announced that they were expecting their first child
on Twitter last month.