Catch him if you wish

In the tram they see a middle-aged man in a wanna-be-john-doe-euro-look. He is well groomed, a little tanned and wears his brown hair hedgehogedy short. But then the rest of his outfit is rather odd. Under his pricy night-blue blazer he wears a grass green jeans and a too-tight bright yellow polo-shirt. With this outfit he blends in with the tram interior of yellow handle bars and green stop buttons.
The Jane-doe-euro girl whispers to her partner “Have you seen the guy on one o ‘clock? The one in yellow and green? He looks like an elf.”
He smiles and whispers back “Probably you can catch him and make a wish.”