Pushing a toy car forward across a floor in the exact direction you are walking applies a force and displacement in the same direction, making it easier and doing positive work on the car.

Same direction = Same sign (Positive); Opposite direction = Opposite sign (Negative).

Work done is defined as the scalar (dot) product of the force vector and the displacement vector. Mathematically, it is expressed as $W = \vec{F} \cdot \vec{s} = F s \cos\theta$. When both force and displacement are in identical directions, the angle $\theta = 0°$, making $\cos(0°) = 1$, which yields a maximum positive work value of $W = F s$.

Remember that work can be positive, negative, or zero depending strictly on the angle $\theta$ between the force vector and displacement vector: $0°\le \theta < 90°$ gives positive work, $\theta = 90°$ gives zero work, and $90°< \theta \le 180°$ gives negative work.