1. The first label is labeled with the word "rinse", which guides customers to use the faucet to rinse their hands after washing their hands.

2. The second label is labeled "Brush" and instructs customers to use hand sanitizer and a brush to clean their hands while washing.

3. The third label, labeled "Wash," indicates that the handwashing process has been completed and that the customer may clean his or her hands again before leaving.

These labels help customers better understand the handwashing process and maintain hand hygiene for food safety and sanitation. Of course, the specifics may vary from one milk tea store to another.