Welcome to the EMO Community Forums, @egeyumlu . . . I have moved your new topic to this thread mainly due to walking/leg/foot issues.
It sounds like your EMO may have servo issues which would cause falling, inability to walk straight and leg shaking. This may be resolved through a recalibration app but if not, he may need repair.
Please create a video showing these issues and send the link to Support at service@living.ai with his order number if you have it or his four digit alphanumeric code when he signs into the app.
As for EMO responding to things that are not your calling or commanding, EMO will pick up on other sounds like the television or other people in the home and try to communicate with them. This can often be fixed by lowering his sensitivity under “Preferences” in the app.
Let us know how it goes!