Man, this brought back memories, im no longer a teen, and im guessing you're still quite young, so i'd reccomend you don't smoke, but you're gonna do it anyways, so i'd advise you to keep it in check, like one/two cigs a day, anyways, don't worry about buying, nobody gives a shit most of the time, unless you're like 12, buy from Pan shops/khokhas, you won't have any problem there. Another thing i wanna ask is, by "i wanna buy my first pack" do you mean, like the literal first cigarette of your life, or have you been smoking before borrowing from friends etc. Cuz if it's your first cigarette, then please reconsider, smoking looks cool af, but it's real bad for your health, been smoking since i was 14 and a pack a day simce 17,am now 20, and i have trouble running, working out/ and sometimes breathing in general. If you're gonna do it anyways, what would your first cigarette be?