If I'm walking with headphones in, I'm in the middle of filming my imaginary music video. Do not disturb.
If I'm walking alone without headphones, I'm either in the middle of filming an imaginary music video for the song in my head or I'm having a conversation with an imaginary friend. Do not disturb.
If I'm walking with a friend, I'm having a conversation with them. Do not disturb.
If I'm walking, do not disturb.
If I'm walking alone without headphones, I'm either in the middle of filming an imaginary music video for the song in my head or I'm having a conversation with an imaginary friend. Do not disturb.
If I'm walking with a friend, I'm having a conversation with them. Do not disturb.
If I'm walking, do not disturb.