Indirect characterization occurs when a character is described by using dialogue, actions or events related to the character, as opposed to simply listing the character's characteristics. This allows the reader to see the character in action and to reach his own conclusion about the character's way of being. This is different from direct characterization, in which an author directly describes what a character is like.
The simple present is a verb tense with two main uses. We use the simple present tense when an action is happening right now, or when it happens regularly (or unceasingly, which is why it's sometimes called present indefinite).