When an INFJ is mad, there are several signs and behaviors that can indicate their anger. However, it's important to note that each individual is unique, and not all INFJs may display the same signs. Here are some common indicators that an INFJ might be mad:

1. Withdrawal and Isolation: INFJs tend to retreat into themselves when they are upset. They may become quiet, distant, and prefer to spend time alone rather than engaging with others. They might also avoid social situations or cancel plans.

2. Intense Emotional Expression: While INFJs are generally known for their calm and composed demeanor, when they are mad, their emotions can become more intense. They may display anger, frustration, or irritation more openly than usual. This can include raised voices, sharp tone, or even tears.

3. Passive-Aggressive Behavior: INFJs often struggle with direct confrontation, so when they are mad, they may resort to passive-aggressive behavior. They might make sarcastic remarks, give the silent treatment, or engage in subtle acts of defiance or sabotage.

4. Heightened Sensitivity: INFJs are highly sensitive individuals, and when they are mad, their sensitivity can become more pronounced. They may take things personally, overanalyze situations, or become easily offended by even minor comments or actions.

5. Increased Criticism: INFJs have a strong sense of idealism and perfectionism, and when they are mad, they may become more critical of themselves and others. They might point out flaws, mistakes, or inconsistencies in an attempt to express their dissatisfaction.

6. Non-Verbal Cues: INFJs often rely on non-verbal cues to communicate their emotions. When mad, they may display tense body language, such as crossed arms, clenched fists, or a furrowed brow. They might also avoid eye contact or have a more intense gaze.

7. Need for Resolution: INFJs value harmony and seek resolution in conflicts. When they are mad, they may express a strong desire to resolve the issue and find a solution. They might initiate conversations or discussions to address the problem and restore peace.

It's important to remember that INFJs are complex individuals, and their anger can manifest differently depending on the situation and their personal development. It's always best to communicate openly and directly with an INFJ to understand their feelings and address any issues that may be causing their anger.