When an ISFP (Introverted, Sensing, Feeling, Perceiving) is mad, there are several signs and behaviors that you may notice. It's important to remember that each individual is unique, and their expressions of anger may vary. However, here are some common indicators that an ISFP may display when they are upset:

1. Withdrawal: ISFPs are introverted by nature, and when they are mad, they may withdraw from social interactions. They might isolate themselves, spending more time alone or in their personal space. They may avoid conversations or activities that they usually enjoy.

2. Quiet and Reserved: ISFPs tend to be quiet and reserved individuals, and this behavior may intensify when they are angry. They may become even more withdrawn and may not express their anger openly. Instead, they may keep their feelings to themselves and internalize their emotions.

3. Non-confrontational: ISFPs generally prefer to avoid conflict and confrontation. When they are mad, they may not directly express their anger or engage in arguments. Instead, they may choose to bottle up their emotions or express them indirectly through passive-aggressive behavior.

4. Emotional Sensitivity: ISFPs are highly in tune with their emotions and the emotions of others. When they are mad, their emotional sensitivity may become more pronounced. They may become easily irritated, sensitive to criticism, or have heightened reactions to small triggers.

5. Physical Tension: ISFPs may exhibit physical signs of anger, such as tensed muscles, clenched fists, or a furrowed brow. They may also have difficulty maintaining eye contact or display a more serious facial expression than usual.

6. Artistic Expression: ISFPs are known for their artistic and creative abilities. When they are mad, they may channel their emotions into their creative outlets. They may engage in activities like painting, writing, or playing music as a way to process and express their anger.

7. Need for Space and Time: ISFPs value their independence and personal freedom. When they are mad, they may need some time and space to cool down and reflect on their emotions. They may retreat to a quiet place or engage in solitary activities to regain their emotional balance.

8. Difficulty Verbalizing Feelings: ISFPs may struggle to articulate their feelings when they are mad. They may find it challenging to put their anger into words, leading to a lack of communication about their emotions. This can make it harder for others to understand their anger or address the underlying issues.

It's important to note that these signs are generalizations and may not apply to every ISFP. Additionally, it's crucial to approach an angry ISFP with empathy, patience, and understanding, as they may have unique ways of processing and expressing their anger.