By showing the context that leads to his crying. If the writer has built up a strong relationship between Merlin and another character, and that character is in danger or has been hurt, Merlin's crying will seem more natural. For example, if Gwaine is mortally wounded and Merlin cries, it makes sense because of their friendship.
They can describe his physical reactions. For instance, 'Merlin's shoulders shook as he sobbed, his hands covering his face as hot tears streamed through his fingers.' This gives a vivid picture of his crying.
Using Pikachu's unique electric abilities in the description of its crying can be effective too. For instance, the tears could be described as having a slight electric charge, sparking a bit as they roll down its cheeks. This ties in with Pikachu's nature as an Electric - type Pokémon and makes the crying scene more unique and memorable.
Writers can describe Ryder's physical reactions. For example, they can write about his eyes welling up with tears, his lip trembling, and his voice cracking. This will give the readers a clear image of him crying.
Set the right scene. If it's a rainy day and she's alone in the forest, that gloomy setting can amplify her feelings of sadness and make her crying more believable. Also, the writer can describe how the raindrops mix with her tears, creating a more poignant image.
To depict crying in comics, you could focus on the character's expression. Maybe have them scrunch up their face, tremble their lips, and have big, teary eyes. Also, add some droplets or streaks of tears for a more dramatic effect.
One way is to build up to the crying moment. Show the events leading to it and the character's struggle. And when they cry, describe it vividly - the hiccups, the gasps for breath. Make the reader empathize with the character's pain or joy that brings on the tears.
Describing the setting around him can enhance the mood. If he's crying in a desolate place, it can make the reader feel his loneliness more. Or if he's crying in a crowded room but still seems so alone, it creates a powerful contrast.
Writers often use vivid descriptions of the girls' facial expressions. For example, they might write about Blossom's eyes welling up with big, glistening tears, and her lips trembling. They also describe body language, like Bubbles slumping her shoulders and hugging herself when she's crying. Sound effects can be used too, like the soft sobbing noises the girls make.
One scenario could be when Merlin loses his best friend. In some fanfictions, if Arthur is killed in a battle and Merlin is powerless to save him, he would break down in tears. He has dedicated his life to protecting Arthur and seeing his failure would be a huge blow.
They can describe his physical state. For example, 'Baby Naruto's face was red as he wailed, his tiny fists clenched tightly.' This gives a vivid image of how he looks while crying.
Writers often depict Merlin's recovery as a slow and arduous process. They might show him relying on the help of his friends, like Arthur bringing him food and Gaius providing medical care.