Do you tell everyone?

I tell people if it comes up naturally in conversation (for example, if they notice my Fitbit). It's something I don't feel the need to hide because I think it's positive, but not something to bring up unless it naturally fits.

I'm not saying anything to my workmates. I'll just let them notice.
My wife is on board with MFP and we both started with a trainer at 24hour fitness who actually insisted we sign up with MFP.
I have a couple friends on MFP and try to comment regularly to stay accountable to them as they check my food log and jazz me.
I have been reading community posts and am starting to make comments to get involved with people with similar goals who, of course, know what I'm doing but don't know ME.

My family knows that I'm trying to lose weight because they are all overweight (except my dad). I'm not overweight, but I just want to lose the belly fat and get fitter.

I was almost at my goal weight last year and people at work noticed I was toning up. I told them I was counting calories and going to the gym. So many of them told me to stop losing weight because I was either too skinny or didn't need to. I worked every Sunday and I would treat myself and have a croissant for breakfast and my supervisor would always say "how can you lose weight when you eat things like that?" I found it made things harder because even though I was doing this for me, their frequent comments would get me down.

I've since started a new job, but I'm not going to tell people unless they ask, just so I can avoid those annoying comments

My friends and family that are closest to me know because I am around them most and I tell them when I can't have something (that is if they don't remember me saying for before). Then there are the time I tell them I hate them for bringing out the sweets. XD

But in all honest, things like on fb I never post results, just my work outs like my runs with best times or maybe an enjoyable trail ride for my many horsey friends who care. Because I know the friends I keep in touch with online or by phone would say I was fine the way I am. Just like some friends at work who had already been saying that. And I just flat out don't say anything to them about my progress. I get funny about that kind of stuff.

I haven't told anyone but my partner and my kids.
I felt my kids should understand what I was doing and that it was not a "diet" and that they should get involved by coming for bike rides when I go walking so we can all spend more time doing positive healthy things instead of sitting in front of the tv.
My partner had to know because I didn't want him shoving tim tams in my face.

As for everyone else they can sod off. I am not interested in my families bodgy dieting advice. I am so very tired of their passive aggressive fail methodology. I just figured it has nothing to do with anyone else and the giving of unhelpful advice from people who are overweight.... not even having really ever achieved a healthy weight range.... goes against what I am trying to achieve.

Sadly this was reinforced when my walk tracker app connected with fb to post my walking route and how long i had been walking , how many cals i had burned etc etc and the comments from certain family members were just awful, rude and mean.

Why not just let the results speak for themselves?

I tell everyone... I find that way I have more motivation to keep it up!!

I don't go out of my way to tell people. I don't like all of the unsolicited advice I get, or the "can you eat this?" stuff, or the "should you eat that?" stuff. It's none of their business and I don't feel like explaining myself and I'm kind of a private person.

All of my friends know I'm trying to make gainzzz... that's about it.

I make it known, that way if I have to refuse food someone is offering me, they won't be offended. Plus, all of my girlfriends/co-workers at work are all trying to lose weight together. Power in numbers!