[{'role': 'user', 'content': 'Analyze the following clause from a privacy policy and determine if it\'s fair or unfair. Also identify any privacy practices mentioned: SOCIAL SHARING If you choose to use the social features of Pacer, your daily activity data and some profile information such as your display name and avatar may be visible to other users in your groups. By using this feature of our services you consent to sharing this information. You can choose to stop sharing data with other users at any time by (i) leaving the group(s) to which you no longer wish to share or (ii) enabling the "Stop Sharing" function. However, any data which you have already shared may still be visible to other users.'}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]