Answer
A positive charge starts to move toward a position of lower potential.
A negative charge starts to move toward a position of higher potential.
Work Step by Step
An electric field points from higher potential to lower potential.
A positive charge in an electric field moves in the direction of the electric field. Therefore, a positive charge starts to move toward a position of lower potential.
A negative charge in an electric field moves in the opposite direction of the electric field. Therefore, a negative charge starts to move toward a position of higher potential.