1. When he doesn't follow you back immediately

Not mad, just disappointed. Actually, very mad. Seething, if you will. Honestly expected way more from Steve from Intro to Biology.

2. If he follows you first

Hey! It's a little hard to see you down there since I'm ON CLOUD NINE RIGHT NOW!!! You text all your friends. These days, this is practically a marriage proposal. Time to start picking out wedding china? Can Vera Wang do this on such short notice?

3. If one of your friends also has a crush on him

Sorry, Becky. Guess you'll just have to live with being a bridesmaid at our wedding.

4. If you don't follow him, but have a mutual friend who does: you ask them for screenshots

He's private and you want to know what he is like without any consequences. You're just not ready to follow him yet, but you need some screenshots in your arsenal. This is case in point of why I should ABSOLUTELY not be considered a real adult for at least another five years.

5. Reading his bio

The best thing it could be is just his name or school or maybe his frat. Or nothing if that is indicative of being a real live grownup who has a job(and I don't mean working at an IT start up your daddy found you). We don't really need an inspirational quote or something random that only two people understand. Your name is fine, thanks. Gentlemen, take a page out of Avril Lavigne's book and don't make everything so complicated.

6. Seeing how many followers he has

This is something I don't really care about, but it can tell you a lot about the person. Like if they are a SoundCloud rapper trying to make it big and have clearly followed a ton of random people to try to get a follow back which has resulted in a sketchy follower-to-following ratio. If not, then they're probably normal.

7. Seeing how many photos he has

There is nothing worse than thinking you are about to feast your eyes on all his photos only to discover that he has two photos and one is a group shot where his face is practically hidden. This will result in an hour of promising your friends that he is normal and good looking, despite what this feed might suggest.

8. Making sure he is not radiating jerk

Saying "Saturdays are for the boys" is fine sometimes, but not every weekend. If he has more gym mirror selfies than the amount of Cosmopolitans Carrie Bradshaw has drank in her lifetime, it's time to move on. Unless you're working on a street corner, there is no need for you to be "just out here hustling/grinding."

9. Temptation to comment on a recent picture

His hair looks really good! Or if he posts a picture of a party you saw him at this can be more tempting than buying cookies from Girl Scouts outside the grocery store. Resist, resist, resist.

10. Discovering you have a shared interest

Oh my gosh, he went on spring break and you did too!! He went with ten friends to Panama City and you went home and ate Chinese food with your mom, but really, I don't see a difference there.

. 11. Stalking the most recent photo

Is it with a girl? Is she prettier than you? If she commented an emoji it's freaking over. You sprint immediately to your closest grocery store and buy all the Ben and Jerry's.

12. Gathering of all the information

Now we go into detective mode. Assuming at this stage that the dude actually had a decent amount of pictures, we now dig like Bob the Builder. We look for hobbies. We judge these hobbies. If you really like him, you concoct a plan to see how you can relate to these hobbies.

"Oh my gosh, I loveeeee fishing! I love it so much! Oh, you fish, you don't say? Look how much we have in common!"

13. Figuring out how close is he with his family

Looking for how many times his parents surface on the IG. If you see he has siblings then if you are on a date one day you won't be trying to digest their names and ages, you'll already know. He will be blown away by your impeccable memory and interest in them.

14. Seeing something cool he did and becoming obsessed

Maybe he studied abroad. All the heart eyes for the picture of him volunteering with Habitat for Humanity last April.

15. Pictures that make the world stop

This might be him in a tux at a wedding with his grandma. It might be a swoon-worthy pic of him shirtless at the beach. It might be a picture of him and his wait for it… DOG and you die and blush and get so excited because you don't know what's cuter: him or the dog. These are the ones you screenshot for your friends.

16. All of a sudden it's been an hour

You look at the clock, an hour has passed and you're in 2014. Great, now you know exactly what he wore to a middle school dance. Awesome!

17. When going into the tagged photos leads to being 3 people deep

In tagged photos, you find previous girlfriends, and naturally, you have to stalk. Luckily, her account is public and you see that her best friend could easily be the next contestant on the Bachelor and probably win the whole thing. So you click on her profile and stalk her too. Then you see her boyfriend and look at his profile and feel genuinely hurt that you won't be getting an invite to their wedding.

18. Not blurting out everything the next time you see him

You know you can absolutely NOT let on that you stalked him at all. Even though there were ten close calls, you did not accidentally like anything. Consider that a success. They should give out trophies for that. He doesn't need to know that you dropped your phone into the Oreo crumbs that were on your face at 2 a.m. As far as he knows, you simply approved his request and moved on with your life. If it comes up you should say "Oh, I didn't even remember we were friends on Instagram."

19. Crafting your first post with him being a follower

It has to be hot, but it has to be effortless. You could do a selfie but you want him to know you have friends. But they can't look prettier than you. Should you be mysterious and post an artsy shot? Or post a travel throwback? *Books plane ticket to a cool destination just to take a pic he might like*

20. The first time he likes your post

You feel like the definition of fabulous. A Snapchat is coming down the pike for sure. Ugh, how can you hate a culture and love it so much at the same time?