Final answer:
Approach her and ask if she needs assistance
Step-by-step explanation:
Based on the given scenario, the appropriate response would be to approach her and ask if she needs assistance. It is important to provide customer service and assist customers who may need help in a store setting. Without approaching her, it would not be possible to determine her intentions or needs. By offering assistance, you can ensure that she receives the help she may require and provide a positive shopping experience.