What causes the "Buzz" you get from smoking tobacco?

Recently I was out partying and was wearing a nicotine patch to quit vaping but I folded and ended up smoking a Black n' mild while inhaling. What followed was probably one of the best buzzes I've ever had from nicotine since the first time i've used tobacco.

I will try my best to describe that feeling. It was just an overall sense of energy and exhilaration flowing through your head. Suddenly everything feels possible. Immediately I went to spark up a conversation with the cutest girl at the party and actually ended up getting her number. It's lie anxiety doesn't exist at all for those two minutes. Combined with alcohol it is even more blissful. Unfortunately I spent the rest of the night feinding for that same feeling. I have been taking agmatine sulfate to lower my tolerance so I don't know if that has anything to do with it. But I did feel that good old rush that nicotine use to give me that really reminded me just what made this so addictive in the first place. At first you take it for the buzz then you take it to be relieved of stress or to feel "normal".

The first time I ever smoked a tobacco product was at a party as a teenager. The buzz the first time is what I would imagine crack would feel like. After just one hit of a black n mild I immedietely began RUNNING around the party going from place to place talking, dancing and laughing with everyone for those good 3 minutes of the head rush. It was absolutely amazing and I will never forget it. It's just crazy to me how this stuff is sold in stores and so normalized. If I was told nicotine has the potential to almost be as addictive as crack in terms of how good it makes you feel then I would have never tried it.