I'm a teenager, so some of these may not apply to you anymore:
- If you know EVERY single school bus in your district, including makes, years, models, engines, and if they are a spare or not.
- If you follow every single rule in school firmly and never break them.
- You're clumsy at sports, and in elementary school you were either picked last, or put with another special ed/autistic student for PE class.
- You would rather jump off a 20 foot cliff than ever hear "Watch Me Whip, Watch Me Nae Nae" one more time.
- You know every single street within a few miles of where you live, and know how to get to a destination easily.
- You still use the VHS format proudly (with some DVDs) for movies, and don't care about Netflix or whatever the NTs are using now.
- Agree with Kuraudo777, someone tells you a joke and you are not laughing about it; then the NT says "hey, it's supposed to be a joke!" You believe that it is real. Black and white thinking.
- Related to the bus one at the top - You know all of your bus drivers, going back to elementary school, and never sit in the back of the bus...EVER!
- You are 17 but still are afraid of fire alarms, especially the older electromechanical ones.
- You would, again, jump off a 20 foot cliff than ever own a dog, cat or other pet. EVER. EVER!
- You actually do a good job "acting" NT at school.
- There is NO way you would ever do fast food or high-stress retail jobs, due to high-stress environments and rude managers.
- You inventory and organize everything in your room by number, but you are sloppy and messy when it comes to your binder at school.
- Your favorite genre of music is good ole' smooth jazz and soft adult contemporary, otherwise known as "sleep music" and "Muzak" and "boring" to all the NTs at school who love top 40 and rap music.
- Most of your friends are men/boys, because girls don't understand your special interests and only care about makeup, crummy music, NT boys and kissing.
- If Air Jordan shoes are NOT, and NEVER GOING TO BE your style of shoe.
- You want to yell at your stupid classmates really badly if they are whispering or talking when the class is taking a test. But you don't because of the "follow rules firmly" rule that you have.
- You hate almost every commercials that airs today, including anything from that stupid Flo for Progressive. Stupidity of people, noisy music, annoying music, unfunny jokes, the whole nine yards.
- You are entertained by 1980s commercials full of cheesy jingles.
- You want to take your driving test, but have to wait until 18 so you can avoid $400 driving school (boring). Then after that, go straight for your CDL so #1 - you can drive a school bus in case the only available school job opening is "SUBSTITUTE DRIVER", and #2 - so you can buy a used bus at a school district's auction. But you still have a car around for situations where you cannot back up a 40' bus into...
- You ENJOY being an only child.