Dude uh, if you're not ready no pressure. It should feel natural. If you knew this person before you shouldn't behave any different. It shouldn't feel like an obligation. You should remember things about her naturally. Don't be like trying to use memory flash cards or something. Yeah you should maybe be more loving to her than you are to normal people, or maybe not. My friend is very rough with her boyfriend, they playfully insult each other all the time, they game together and they just are nerds. My relationship with my BF is more loving, more cuddly and touchy. You have to find the right way for your relationship. Not every one is the same.
Don't do what you think you're "supposed" to do. Do what feels right. And if she has a problem with it she should bring it up. And you guys can talk it out. Like with my BF, I felt he kept being too sexually forward so we talked about it several times and he's toned it back. It's about understanding each other. Knowing what the other is okay with.
I mean, girls usually bitch about dates and stuff, but like, I can't remember jack squat about dates. My boyfriend is the one who remembers all that girly shit. It's sad, but I have trouble remembering his birthday. But he doesn't get offended. It's just, basically depends on the relationship. Be natural, be yourself. That's the reason she's your girlfriend now right? Because she was attracted to who
you are. There are some expectations, but if she knows you're a guy who doesn't show emotion much it shouldn't bother her. Maybe she finds your stoic nature hot? And when you're able to show a bit more emotion and affection it makes her day and feel so special and important that you are showing
her that affection.
Also, you should label the topic a bit better. Just a tip
like maybe "New girlfriend. Help!" Or something.