There could be several reasons why strangers randomly start conversations with you in public:
Social Interaction: Some people are naturally outgoing and enjoy striking up conversations with strangers. They may find it a pleasant way to pass the time or connect with others.
Friendliness and Approachability: If you appear friendly, approachable, or open to conversation, strangers may feel more comfortable initiating a chat with you.
Shared Interests or Context: You might find yourself in situations where there is a shared interest or context, such as waiting in line for an event, attending a gathering, or being at a location related to a particular interest or hobby. This can make it more likely for people to initiate conversations.
Need for Help or Information: Some people may approach you in public because they need help with directions, recommendations, or any kind of assistance.
Loneliness or Boredom: In some cases, individuals might feel lonely or bored, prompting them to seek out interactions with others, even with strangers.
Compliments or Admiration: A stranger may approach you to give you a compliment, express admiration for something about you (e.g., your style, skills, or attitude), or even just strike up a conversation because they find you interesting.
Practice or Social Skills Development: For some individuals, initiating conversations with strangers serves as a way to practice their social skills and overcome social anxiety.
Cultural Norms: In some cultures, it is considered polite or customary to engage in small talk with strangers in certain settings.
Remember that each individual is unique, and their reasons for initiating conversations may vary. If you find yourself frequently approached by strangers and it makes you uncomfortable, you can politely let them know that you prefer not to engage in conversation at that moment. People generally understand and respect personal boundaries.