While every individual is different, social dynamics in 2026 suggest that if a girl consistently chooses to sit next to you, it is usually a sign of comfort, trust, or romantic interest. In shared spaces like classrooms, offices, or transit, humans typically maintain a "buffer zone" of personal space; breaking that buffer by choosing the seat immediately adjacent to you is a deliberate social signal. She might find you approachable and "safe," or she may be subtly trying to initiate more frequent interactions. Non-verbal cues can help you distinguish between friendly comfort and attraction: if she tilts her body toward you, initiates light physical touch (like "accidental" arm brushing), or mirrors your posture, these are classic signs of rapport and potential interest. However, it could also be practical; you might sit in a "prime" location—near a charger, under an AC vent, or with a good view. If she engages in conversation and looks for excuses to linger, she likely enjoys your presence. The best way to find out is to offer a warm, open smile and start a low-pressure conversation to see how she responds to your engagement.