Wa! Excellent ideas which I couldn't think of!!!!!!
The location is very good to represent why we need to protest! While protesting there, the participants, the journalists, the government will smell and agree why we are so angry with. Also, more residents can join when they see us, use a speaker to invite all residents to come down! May be play some CD such as the song "Brave Chinese" (Lee Ming Man), hope that our Chinese Governors who always look after Hong Kong will 'hear' that we are Chineses and we are calling for our Grandpa's help... all we ask is only a reasonable living environment and some fresh air! We don't want to be a joke for other developed countries!