[He does want to be found. But he can't exactly put a neon sign over his head and attract whatever's left of HYDRA, so he just has to be patient and trust that Steve's instincts with lead him to the right path.
In any case, he's not actively hiding, either. He's just a friendly but quiet and maybe a little weird neighbour, same as he was back in Europe. When he's not on active babysitting duty or running errands, he spends most of his time at Mac's, or with some of the friends Harry's introduced him too.
All in all, it's not impossible to ask people if they've seen someone like him. Or even just see him walking down the street.]