Nosey vs Interested

I am starting to think I am too open and expect others to be the same. I don't keep a lot of stuff in and I often refer to myself as an open book. I don't necessarily see anything wrong with that. I look at it as, what's the point in hiding things. Most things aren't that important that no one else can know (sometimes things are better left unsaid, but, for me, 9/10 times not so much). My issue is that not everyone else looks at it that way. A lot of people feel like they have to keep things to themselves even the stupid every day stuff.
I keep feeling like I come across as nosey or annoying, which sucks because I am really just caring and interested. For example when I ask someone how they are or how their day is, it's because I care not because I am trying to get random information. Like I really care about how your day went and what you did, if I didn't most likely I wouldn't ask. Or lets say I am with someone and they get a phone call, I'll say "oh, who was that" and it's not a nosey thing, it's a conversation thing. And I don't ask people this often, there are times when this is appropriate and inappropriate... otherwise it would just be a nosey thing.
Maybe most people really don't care and are just asking to be polite or even nosey.. I guess sometimes people just ask to ask and maybe I do that sometimes too, but for people I am close to or interested in I really am being friendly and really do care to know.
As I've said a million times I am a people pleaser and I am easy to please. I am a go-with-the-flow kind of girl which can also look like a push over, which I will also admit I can be. But what sucks is when I put myself out there and people mis-inturpet who I really am. Maybe I come on too strong or maybe I make myself too available and maybe that's my problem... I dunno... Just something I keep thinking about.
The question is should I just stop asking and caring just stop telling people about me and keeping everyone at an arms length... lol knowing me that will never happen. Maybe I should just back down a step, if people want me to know something they can tell me, no need for me to ask. (except for the people I know are like me and who like to share or like to asked(-:...)
hmmm... I dunno just something on my mind, that leads to other thoughts for another day...