Would people be shocked?
If you had to walk around for a week wearing a big cross patch to indicate you were a Christian, how many people that your normally see would be surprised? How many of them would be confused?
I’m not an advocate of JUST living the gospel and waiting until people asked. We are called to take the gospel to the world and that means being bold and initiating relationships / conversations. However, a very good question to ask yourself from time to time is whether or not people around you would know about your faith simply from the way you behave. Declaring God definitely required us to speak, but it also requires action.