What am I doing wrong with this Vector3 math?

char:MoveTo((Lobby.Position * Vector3.new(math.random(-2, 2), 0, math.random(-2, 2))))

Without the * Vector3.new(stuff), this works just fine, teleporting the char to Lobby. But with it, it teleports the char to the middle of the map instead, near Vector3 0,0,0. I've used Vector3 before and i'm pretty sure multiplying a position by a vector3 means ''position plus these coordinates'', not ignoring the position entirely. I'm a bit rusty, so what am I doing wrong?