**3. Result**

#### **3.1 Self-reports on social media usage**

All reported to be the user of WeChat. On the length of social media use, 13 reported to use WeChat for 1-3 hours per day, 4 reported 3-6 hours per day, 3 reported 6 hours or more per day and 1 reported less than 1 hour per day. On the frequency of social media use, 6 reported to use WeChat every ten minutes, 10 reported every half an hour, 3 reported every hour and 2 reported every two to three hours.

All reported to have used emotive stickers, among whom 18 reported to have used animal stickers. On the frequency of using stickers, 4 reported to use stickers highly frequently, 9 reported often, and 8 reported occasionally.

#### **3.2 Social attribute ratings**
