Mostly negative. When I first smoked a cigarette, I not only felt physically unwell but also realized how bad it smelled. It was embarrassing to have that smell on me. However, some might say they felt 'cool' at first, but that feeling doesn't last long when the negative effects kick in like coughing and a bad taste in the mouth.
I have a friend who, during his first time smoking, was in a really bad mood. He thought smoking would calm him down. He lit up a cigarette and as he smoked, he felt dizzy. He realized that it wasn't the solution to his problems. Instead, it just made him feel unwell and he decided never to do it again.
I remember my first time smoking a cigarette was really awful. I took a puff and immediately started coughing. It tasted so bitter and made my throat feel scratchy. I couldn't understand why people would like it at all.
I heard about a soldier who smoked a cigarette right after coming out of a battle. It was his way of calming his nerves. The cigarette in that moment represented survival and a brief return to normalcy in the chaos of war.
It's not common. In the Naruto universe, the characters are mainly focused on ninja training, battles, and relationships. Smoking cigarettes is not something that is associated with the traditional Naruto world. However, in some fanfictions, it could be a way to explore a different side of Naruto, like if he had a troubled past or was influenced by a different culture in an AU (alternate universe).
Well, one story could be about a group of friends who would always gather after work to smoke and share their day. They would sit on a bench in a park, and each cigarette break was like a little escape from the daily grind. They talked about their dreams, their frustrations, and just life in general.