Put the fried rice in a microwave-safe bowl and add in 2 tablespoons of your preferred liquid.

Make sure to cover the bowl with a loose lid so that the moisture remains inside the bowl. Just ensure that some air can escape from the bowl.

Turn the microwave to the highest setting and cook the rice for 2 minutes. 

Stir the rice to distribute the heat, put the bowl back in the microwave, and cook the fried rice for about 3 to 4 minutes more.

Let the rice cool a little before eating it.