You cannot always ask permission, of course. If you are shooting a street scene or a wide shot of a market, you can't run up to everyone and ask if it's OK. In general, people do not mind this sort of photography—it's only when they're singled out that they get uncomfortable. But not always. Be sensitive to the scene in your viewfinder. If people are getting nervous, ask permission or move on.
Chinese opera has a long, rich history that dates back to 200 A.D. Over the centuries, a handful of styles of opera emerged — each with its own distinct makeup, music, and acting traditions — reflecting the eras and tastes of the changing dynasties. Sichuan opera is the youngest style, emerging around 1700 in Chengdu, Sichuan province, where it is still performed today by a dwindling roster of troupes.
Lyn's last tip is to have your own website. "Show off your work on Instagram and Facebook, but do ensure you have a good, easy to use website too. It should have some of your best work (with lots of keywords!), any specialities, and awards/competitions you have won, and your contact details. It's too easy to get carried away, add thousands of images, and forget the basics. Keep it simple."
Unfortunately, due the language barriers I wasn't able to interview either of these two actors to gain an insight on their lives and background. They also seemed reluctant to allow me more than a few minutes to photograph them, either because they were waiting to perform (as in the top photograph) or just uncomfortable with the the attention of a stalking photographer (lower photograph).
Readers of The Travel Photographer blog know of my current long term involvement in documenting Chinese Opera of the diaspora; an involvement that will culminate into the production of a coffee-table book bearing the same title. It is for this reason that the blog has been recently populated with posts with excellent work of Chinese opera by travel and documentary photographers.
The most interesting sites for people photography in both Taipei and Hong Kong are in and near temples such as Man Mo and Longshan. The night markets are also a trove for photogenic characters such as the tattooed fellow who stood akimbo guarding his inventory of bric a brac items that lay down in Xichiang market...whether this inventory was honestly procured or otherwise is left to the imagination of viewers.
Make use of people to give your images life and scale. If the facade of a particular building appeals to you, the picture may be that much better if you show people walking in front of it. They will give it scale and also let viewers know what sorts of people live there, how they dress, and the like. An outdoor café may be more interesting crowded with people than empty.