To be honest, my mum always knew I liked names, because when I was about 8 or 9, I was sat on a naming site trying to find one for a baby doll, and at the time, my family had one computer, in the living room, so everyone could see it. After that, it’d be every few weeks, and I’d be spending time on ParentsConnect (I don’t think Nameberry was around then!), researching names and meanings.
The big time nerdiness didn’t come about until I was 16 though. In Parenting class (which I took in high school, as I wanted to become a teacher and work with young children), we had to do an essay assignment on 6 names (3 boys, 3 girls) we would use for a baby. [name_f]My[/name_f] classmates sort of laughed it off, picked some random names, and wrote them down, but I spent hours with my best friend, making up lists, narrowing them down, rewriting, etc, until I found my three. I believe they were [name_m]Mark[/name_m] [name_m]William[/name_m], [name_m]Thomas[/name_m] [name_m]Anthony[/name_m], Meghanne [name_f]Johannah[/name_f], [name_u]Brooklyn[/name_u] [name_f]Liberty[/name_f] and I’ve forgotten the other two. I remember the girls list getting to be about 3 handwritten pages long though. I had some really horrendous choices, but in the end, my assignment ended up being the most thoughtfully written, because I explained the naming process I went through to my teacher, and somewhere, I still have the assignment.
I didn’t fully tell my mum I was obsessed with names until about this past [name_f]September[/name_f], and she thought (and still thinks) it’s the coolest thing ever that I go through and spend hours analyzing statistics, finding out meanings, background, origins, etc, finding new names, rediscovering old names, she has actually been known to brag (which is embarrassing).
In high school, I only really had about 4 or 5 people who knew, all friends of mine, 3 of which being boys. [name_f]My[/name_f] best guy friends were really cool about it, and the one even went over my list with me, and told me his favourites (we were about 17). He actually happened to be a name nerd himself, which I thought was pretty cool (and if it weren’t for a few idiot moves on his part, we’d be dating, but that’s besides the point
). [name_f]My[/name_f] college classmates were all sort of into names though, except they all had this ‘brilliant’ idea of naming their first born baby [name_f]Nevaeh[/name_f] (seriously, nearly all 42 of them).
I still hide it from a lot of people though. [name_f]My[/name_f] aunt and uncles have some idea, because of blog posts I’ve done on the [name_u]Berry[/name_u] Juice blog, but most details are kept secret. [name_f]My[/name_f] grandmother, mum, sister, best friend, and cousin are all big name nerd supporters, although, my mum only knows a few names I happen to like, my sister and best friend know the majority (my best friend knowing them all).
I currently have 3 name books in my possession, one I bought for myself for my birthday, one from my sister, and another I treated myself to. I’ve been looking into getting another, but haven’t just yet, as I’ve found that lately, the internet is actually more helpful. I also spend hours making lists, and I feel like they’re never finished. Lately I’ve taken to charting statistics too (love stats to be honest!), and I’ve even made my own little graphs with markers.
I’ve also taken to keeping a binder just for names - top 1000 lists, my favourites, statistics, middle names, etc, and it’s almost sacred - no one is allowed to touch it without my permission 
There’s nothing wrong with just liking names though, and, both my parents (who have a tendency to swear…a lot), have instructed me to tell anyone who gives me an odd look for having name books where to go
I normally sort of ignore it, or make sure I go in with someone (like my sister) and make conversation to distract from it, or sound like I’m buying it for someone who is in fact expecting.
I’d come clean about it when you’re ready, but I really wouldn’t worry too much about what others think of you, we all have our hobbies 