-Speak clearly, repeat, show what needs to be done,
-Improving the system,
-Try to have a weekly meeting to talk about any problem and try to resolve them.
-Working on the problems causing miscommunication- slang, improper language- singlish.You should try to use a proper language.
-Culture for e.g:encourage open discussion with no percussion.
-Personality: Extremely shy and lack of confidence: to overcome try to given tasks that involve back office role.