hi lily1221,
firstly welcome to HK!
we are also living in harbour green .. i have a 2 yo 3 mths girl and am abt to pop my 2nd one in 10 days! We did not know anyone when we moved to HG - but started making friends at the playroom /clubhouse. Got to know some mommies and helpers and that help to ease our stay here quite a bit.
Is your little one in any playgroup at the moment? You can also meet other parents in playgroup/school or extra curriculum activities that your son is involved in.
I find HK a relatively easy place to meet other opms/dads as most of us are expatriates here and have no one to turn to except for our friends.
I would probably be super busy pretty soon but it will be nice to meet you one of these days for a quick chat if you would like.
Let me know ok?