Much to my chagrin, whoever said college is the fastest time of your life was right.

It seems like I was just attending my Boston University orientation, and before I knew it, I ended up here. Graduating in less than two months.

And cue the hyperventilation.

Now that I am this well-informed senior, I love comparing things I do now to what I did as a naïve freshman on campus. Even better is when I’m around school and, simply based on habits and mannerisms, I can tell a freshman apart from a fellow senior.

There seem to be some commonalities in how we Terriers figure things out throughout our four years at college, and while seniors sometimes have even less of a clue of what they want to do with their lives than they did as freshmen, here are some things that have definitely changed throughout their time at BU:

1. They’ve figured out how to study for college.

2. Unless they live there, they wouldn’t be caught dead doing the "Allston Crawl."

While it’s a freshman tradition, seniors have been done with lingering in the inexplicably damp, dark fraternity basements for a while now.

3. They’ve figured out that they can powerwalk to East Campus a lot faster than they thought.

That 20-minute stroll becomes an impressive 13-minute hustle.

4. If the traffic light isn’t in their favor when crossing the BU Bridge on the CAS side of Commonwealth Avenue, they walk further down the traffic island to save some time.

They don’t naively – or patiently – wait at the crosswalk for the light to change.

5. They’ve realized they actually do have to do some cooking.

If they want fresh food that’s not from an Italian, Chinese, Japanese or Mexican restaurant, they have to cook it themselves.

6. They’ve become regulars at Tavern In the Square.

It’s the weekly hotspot they’d been waiting to go to since freshman year.

7. They’ve discovered the beauty of the Southie.

From great restaurants to cool nightlife, Southie is an awesome neighborhood to explore.

8. They’ve made a LinkedIn profile.

With all the internship experience they’ve had by senior year, they have resumes to show off.

9. They’ve learned how to do some grown-up stuff.

Like paying rent, balancing a checkbook and self-budgeting.

10. They’ve probably visited FitRec more.

If you’re anything like me, you didn’t even think of going to the gym freshman year – it was too intimidating and too time consuming. But habits have changed since then.

11. They’ve realized that graduating college is at least as stressful as applying to it.

You’re leaving the daily regimen you’ve come to know and love, and are being forced to enter the “real” world, full of career searching and other responsibilities.

12. They’ve seen just how quickly four years can go by.

And would advise any freshman to cherish every second of his or her time left in college.