Mainland-based relatives of the overstayers say they have had to contend with a news blackout on the protest.
As the sit-in continues into its second week, relatives have been able to glean little news from official mainland channels.
One relative in Fujian province, where most of the protesters are from, said he had heard nothing from television or newspapers locally. Like the overstayers, he also has Hong Kong parents and has been applying for years to emigrate to live with them.
'There's no news on it at all. I call my friends and parents every day to find out what's going on,' said the 27-year-old bachelor whose siblings are also in Hong Kong.
He and other mainlanders are closely watching what will happen to the demonstrators.
'I think the protesters have a chance. As long as you don't come back to the mainland, you have a chance.' Mainland authorities in certain areas have reportedly stopped issuing travel or family visitation permits to anyone with parents in Hong Kong.
Mr Wong said Public Security Bureau officials in Fujian had denied his request for such two-way permits.