Ed-note (Sabba) – They took the streets of HKG in the tens of thousands last Autumn and managed to paralyze the city for 2 months before the police intervened and sent them home. This time, almost none of them responded to the call if the Sirens called Democracy, Human rights and blah blah blah. This article mentions 2 to 3 thousands. The Chinese authorities say they were about 1 thousand.
http://time.com/3918681/hong-kong-protest-democracy-umbrella-revolution-occupy/