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Think about how current can lag. It is if there is an opposing current, something that an inductor produces.
Think about how current can lead. That is when capacitor holds the voltage. So it is more capacitive.
Sign of the reactive power
in sinusoidal AC circuits, the sign of the reactive power Q tells you whether the load is inductive (Q>0)(Q>0) or capacitive (Q<0). The core reason is that inductors cause current to lag voltage (phase shift > 0), whereas capacitors cause current to lead voltage (phase shift <0). sin is an odd function and Reactive power Q = V_rms * I_rms * sin(phase_shift)