Complex sentence: As they all leave, the homeless man who's noticed the pair of twins gets a shock when he sees a successful business man come out, hinting he may also have a twin, which surprises the business man.
Split into simpler sentences: As they all leave, the homeless man who's noticed the pair of twins gets a shock when he sees a successful business man come out. Hinting he may also have a twin, which surprises the business man.