How do you use a exclamation mark as in anger?

An exclamation mark can convey anger by emphasizing the intensity of the emotion in your statement. For example, saying "I can't believe you did that!" expresses frustration more strongly than a simple period would. The punctuation signals that the speaker is not just making a statement but is also emotionally charged, which can heighten the impact of the message. Using it effectively can help communicate the urgency or severity of your feelings.