It depends on your local masonic culture - and rules.
Many Constitutions have non-solicitation rules where members are not allowed to ask men to become Freemasons. We have no such rule (but think we once did). Some Constitutions do not allow lodges to advertise. Some places have those rules, yet have a culture of displaying emblems like the square and compass through rings and bumper stickers.
"Not speaking about Masonry" will mean different things to different people. Keeping obligations is obviously very important, but those also vary. They are again also affected by culture. For instance, our obligation says we will not write the secrets, yet we have a ritual book. "Secrets" are written like this;
"That on the L___ was ____ and that on the ____ was _____". If I filled the banks, I would be thinking I broke my obligation. If I don't, then my GL will not have a problem. In some places, a "secret" is what happens at meetings, for me, I will tell you all about how we pass minutes and pay accounts, perform ceremonies, and have discussions. We will have non-freemasons (including women) to our normally dinners, in some places, they just don't do that. I will actually tell you a lot about Freemasonry if you keep asking, but at some point, which will vary, I will say don't compromise your expereince in joining by asking me, just go through it, then ask the questions.... and they will never end. You can't explain an experience, especially Freemasonry, to someone, they need to live it... and Freemasonry is not just the degrees, it's the entire journey of your life.
Many American and American influenced Constitutions (like the Philippines) have the "2B1ask1" (to be one, ask one) culture. I like that, because I like the mystery and often men do some research (indeed even to know what 2b1ask1 means), but here, we'll just ask people if they've heard about us and if so, what they know and if they are interested... but it took me about 5 years to decided to suggest it to a friend when he brought Freemasonry up, because it he was talking rubbish about who we were, and didn't know I was a Bro... so we don't go constantly fishing for applicants to every Tom, Dick and Harry, but I always have my radar open to a good man.