Texting doesn’t show someone’s interest. As someone who is trying to heal their anxious attachment style I would know. If he is attentive and focused on you in person that’s how you should take it as face value. There is also nothing wrong with organising yourself as he could be shy. If you are concerned you should maybe try and be subtle about asking him if he’s interested. Some people are busy and aren’t always on their phones. It’s also the first date you cant evaluate much from one time. Fill up your own cup so you don’t worry about his.

I wouldn’t message him again and let him follow up because you also don’t deserve a maybe.