Communication ! communication!! communications !!! In fact we had a conference on this topics in my university. I will never forget a purtorican girl( whose english is as good as US born Citizen). she presented a paper saying she has to think everything in spanish and translate it to english in fraction of seconds. I think it happens to everyone, For nepali however good your english is you think in Nepali and translate and talk in english. These things slows down the process and I guess they dont want to be as interactive as they have to be. Thanks