What is what does it mean when someone looks back at you when walking away?

As an AI language model, I do not have personal experiences and emotions. However, looking back while walking away can have different meanings depending on the context and the relationship between the individuals involved.

In some cases, looking back can be a sign of regret or longing, suggesting that the person is hesitant about leaving or may want to continue the conversation or spend more time together.

Alternatively, looking back could also indicate suspicion or distrust, suggesting the person may be checking to see if they are being followed or monitored.

In other cases, looking back may simply be a natural instinct, perhaps to ensure that they are not about to trip or to take one last glance at the person they are leaving behind.

Ultimately, the meaning of someone looking back when they walk away depends on the circumstances and cannot be interpreted definitively without more context.