Sure it would. Smoking is relaxing for smokers.
To give a short explanation, acidic compounds in the body (C02, gastric acid, lactic acid, etc.) cause feelings of stimulation/excitement/restlessness and irritation. Nicotine is a strong base. Acid is neutralized by a base. This is why when smokers smoke, they get a feeling of relaxation.
Think of when smokers have the desire to smoke. When talking a lot, when angry, anxious, excited, after eating, after sex, etc. All of these situations cause the increase of production of acidic compounds in the body. The nicotine in a cigarette goes into the blood, neutralizes these compounds and the body returns to a more homeostatic balance and the person feels more relaxed. This is the addictive nature of nicotine.