From Terminal 3
Stay behind the security check point on the upper level and proceed to the Main Hall connecting the concourses; follow the signs to Terminal 2. Once you enter Terminal 2, proceed towards the Children's Play Ground and look for the exit sign by the TSA check point.
Take the escalator down to exit the secure area enter the baggage claim area on the Lower Level in Terminal 2. Take the escalator or elevator across from Delta Airlines baggage claim #3 down to the Bottom Level (BL). Proceed through the west pedestrian tunnel (connecting Terminal 2, The Hilton Hotel, and the CTA); The Barbershop will be a few short steps to your right.