The document discusses how personal identity and perception are formed both on social media and in real life. It notes that online, people may create false personalities or characters that do not reflect their true selves. Personal branding involves raising awareness of one's skills, experience, and reputation in order to be recognized for one's goals. Perception of an individual is formed based on the information they provide, their perceived character, assumptions about them, and their displayed insights and knowledge. The key aspects that shape one's personal identity are their main activities, privacy settings, entertainment preferences, environment, and emotional experiences online.