I'd tell as many people as possible about what I have built, but I might stay a little quiet about what I am building until it is ready to show. If I have what

I'd tell as many people as possible about what I have built, but I might stay a little quiet about what I am building until it is ready to show. If I have what I consider to be a good idea, and I am actively pursing it (i.e., writing code to implement it), I would probably keep it close to my chest until I have something to show.