Why is front passenger tire shaking?

If he grabbed the tire at the top and bottom itll be ball joints. If he shook it from the 9 and 3 position itll be the inner or outer tie rod on the steering rack. If it wiggles in all directions its typically a wheel bearing but you'd hear a humming or grinding noise while driving if that was the case. The rim could have also not been seated properly when torqued due to corrosion, once the corrosion breaks away the wheel will be loose on the hub and definitely shake.