The person in the center taking the selfie seems confident and playful, sticking out his tongue and posing with a relaxed stance.
The person to his right (wearing a black and gray jacket) has a friendly and cheerful vibe, smiling naturally.
The person on the left (wearing a black shirt and chain) looks laid-back and chill, with his arms crossed and a slight smile.
The person in the back (wearing a hoodie) seems more reserved or shy, looking away from the camera.