This is a study to determine the efficacy of a smoking cessation intervention (nicotine replacement therapy (NRT) and counseling) done in a systematized manner with participants recruited from the UAB Substance Abuse Program. The definition of In Vivo experience is: use of the NRT medication during the session using specialized counseling focused around their experience of using NRT, including how the use of NRT may help them quit smoking, side effects, and smoking cessation expectancies. In this study those in the In Vivo group will put the patch on during Session 1 and given nicotine gum in Session 2 and will discuss the experience of wearing the patch or chewing the gum while they are in session. The control group will not put on the patch or chew gum during the sessions but will be given standard counseling regarding quitting smoking.