Answer: Jesse is using The Greeting Approach.
Explanation: The greeting approach is a technique that sellers use with customers.
The greeting approach has been proven to work well especially in situations when customers appear to be just browsing or looking.
The approach is used when the customer has not expressed his/her interest in a particular product.
The greeting approach simply involves greeting the customer in a friendly and professional way by using open questions like the one Jesse used in the scenario above - "Good morning".
The greeting approach will usually lead to determining if the customer is interested in a product or service.