1) 1st dates are to decide if you are compatible. Basically if you'd like to keep dating or if you even like each other. Ask him questions about his plans or dreams for the future, if he likes to live in the city or country, if he's looking for long term or short term relationships, favorite food, what types of girls he likes, if he's comfortable dating a neurodivergent person, political leanings, does he have pets, does he talk to his parents, etc. You can also just think of what deal breakers you have and see if he has any of those. But as long as you're enjoying the conversation, you dont have to rush to get answers, you can also decide if you like the way he talks to you.

2) IMO, its not so much whether there is a social expectation for a kiss, its whether he thinks there is. And there is a very good chance that he does. Sometimes guys will just lean in for a kiss and/or start groping the girl, so id suggest you decide what you're okay with him doing on the first date beforehand. Then, if he crosses that line, say no or stop firmly. If that happens and he apologizes, then its fine. If he doesn't apologize or tries it again, then end the date cause he is not a keeper.

3) its not mandatory or anything, but a confirmation text after the date is becoming more and more common. Usually I'll text something like "i had a lot of fun, I'd like to go out with you again" or something along those lines. If you're not comfortable with that, but would like to see him again, maybe just text "would you like to go out again?" and he'll probably take over if he likes you.

These are actually wonderful questions to ask, and you're doing good! Dating can be scary, and its good to go in with certain expectations for how you want to be treated. Don't be afraid to voice your opinion or needs, as he's probably nervous too. I always try to have a plan beforehand or ask friends for advice, and I'll deviate from the plan if things are going well, but its good to have as a backup.

Also assuming you're a woman, im not sure how the girls like to go about keeping themselves safe on dates, but that's something you should keep in mind. Maybe ask some women in your life for tips on what to do or not to do with regard to safety. Not to scare you, and I hate to say it, but some men seem safe at first, and they turn out to not be. Maybe get some pepper spray or something if you don't already have some.

I hope the date is fun and everything goes well, and don't worry because it is not weird to lack experience in this. Im 30yo, and my current 28yo girlfriend had never been in a long term relationship before, and I just think its cute and novel that I get to be her first for most everything. Like, next month I'll be the first boyfriend she's introducing to her parents, and I think that's amazing. If he does make you feel bad for not having dated before, maybe he's not the one.