Well first of all: If you are worried about those signs that he might not like you, then don't be worried. From my experience, I've just seen that boys are like that. They don't say much, so like when you ask them something, such as "Hey what's up?", they'll usually text back with something like "nothing," or like "nothing much," or something like that. If you want more of an answer, than just "nothing," then ask more specific questions to figure out what's up. For example: ask "How was your day?" Or another one: "What did you do today?" Usually you will get more response from that, and then continue the conversation from there. 

And just because he doesn't text you first, it doesn't really mean that he might not like you, The crush I like has never really texted me first, unless he really needs someone to talk to, or he needs advice. It's usually me who has to be the first one to always text him, and I think that's ok. Just don't do it too much, and see what he does. 

If you want to try a short experiment, then try not texting him for a couple days. See if he ever texts you back first, before you text him first. 

Also, if he comes to you for advice, then I would say that he thinks you're a pretty great friend. He trusts you, and knows that you will give him honest feedback. From what you've told us in this post, I think there is a very high chance that he likes you. 

Hope this helps a little bit.  

If I may ask, how long have you known Austin for?  

TOP TOP TOP TOP TOP!!!!!!!!!!

While I’m not particularly qualified to answer this, I think that it’s plausible he likes you back. Embarrassment and confusion and fear of rejection may, uh, hinder his ability to talk and text with you, while he’s still interested in you enough to act a bit like it. But what do I know? And I have no actual advice. *shrugs* Sorry. 

Joan pretty much got it all. But the French gave me an idea; c’est la langue de l’amour, so maybe you could study with him outside of class? It could be a way to get to know him better so you can further signs more easily. 

Mexi says gyyg! 

Mm, I can't really give good advice on the entire situation. I think it's possible he likes you, but honestly I'm not that great at telling things like this.

What I can say though, is don't read too much into how people text or how frequently, or if he texts you first or not...that's something people overthink way too much, like "oh, you need to wait this long to reply to someone, can't use this kind of punctuation, etc". I have friends who type long paragraphs like me, some that give short answers, some that text me back quickly, some that don't. I vary the way I text people too, some friends I know I can text them about literally anything, some I text if I need something, etc. So....don't get too wrapped up in that.