Thank you for visiting our humble site and congratulations on your upcoming role! When completed, and if possible, I'd personally love to view the film, perhaps on YouTube if possible?
In reference to your two questions. I agree with RChanFan, that rather than a nervous twitch, Warner Oland had just incorporated touching his fingers into his role as Charlie Chan, when "reasoning" or explaining the case/clues in that particular scene.
In reference to the ring that Oland wears, I don't recall him wearing it in his earlier films and have actually looked at some pictures to make sure. I did notice a very good picture that should be of help to you. If you go to our main homepage and click on the "Gallery" tab, click on the double doors, click on the "Gallery Directory" and then scroll down and click on "Charlie Chan in Paris", the first picture on the page has a very good image of Warner Oland, displaying the ring!
I hope we were of some help and please let us know how you make out this weekend. Warner Oland is personally my favorite "Chan" and would love to see your interpretation of him.
Any, as they say, best of luck and....."Break a Leg"....and make us proud!
