Voyeurism of the tester, or How observing users can help you

Sometimes users do not behave as we expect them to. Context of the usage, i.e. how and under which circumstances user accesses the service, is also very important. If we don't take that into account, countless problems may appear.

By observing users, you can get an idea how people use the services in real life, which can help you to find and fix previously unknown mistakes.