You report to your boss the status of your assignment regularly, either verbally or formally. You report when you made a big progress, when you see an obstacle, when you messed things up, when you made no progress, when you go for lunch, when you go to the customer’s site, when you go home from the customer’s site, etc. The key is to keep your boss filled in with the latest and detailed status of your work. If you are asked by your boss ‘what’s the status of the work I gave you?’ then that is a sign that you are not doing enough reporting, or “houkoku.” You should give her a reporting before she asks you to do so.