When you are appearing for the web proctored exam you should take care of the following things:
Your webcam should be switched on for the duration of the exam (the computer activity is recorded) - to ensure compliance with worldwide secure exam standards.
Any suspicious activity or movements will be noted by the web proctor and they will be flagged. In such cases, you may be liable to give answers.
You should be properly visible in the camera.
You should give the exam in a disturbance free environment.