Bam Margera smiles in first pics since psych maintain, takes girlfriend to Nobu

Bam Margera regarded glad and wholesome in his first public sighting since his psychiatric hospitalization. The previous “Jackass” star was photographed flashing a thumbs up as he took his girlfriend, Jessica, to Nobu in Malibu, Calif. Thursday afternoon. For the outing, Margera, 43, opted for an all-black ensemble — pairing a graphic T-shirt with pale…