Generally, you will not be able to pick up your passport the same day. The consular officer who conducts your interview will keep your passport for further processing.
The consulate will then send your visa via courier to you at an address you provide or inform you as to when and how you should pick up your documents. Please visit the U.S. Department of State website to view current processing times for specific consulates.
As always, please do not hesitate to contact Garfinkel Immigration Law Firm by phone at 704-442-8000 or via email with any additional questions and to receive more information.