A person who purchases goods or services.

A person engaged in casual browsing or looking around in a store.

देखने वाला

English Usage: The shopper was just browsing and wasn't planning to buy anything.

Hindi Usage: खरीददार बस देख रहा था और कुछ खरीदने का इरादा नहीं था।

To visit stores in order to buy goods.

खरीदारी करना

English Usage: I need to shop for groceries this weekend.

Hindi Usage: मुझे इस सप्ताहांत किराने का सामान खरीदने की आवश्यकता है।