We have similar tangible ways listed. I find it to be rewarding to share about my personal background and faith. I too once held back, because of that old adage. However, people are curious and more importantly, our faith calls us to share the Gospel. Thankfully, the Lord has opened up so many opportunities of amazing dialogue in the ER, airports, grocery stores, studying at school, etc. I find that as long as one is confident in their faith, they will have no need to fear this adage. Yes, we are to use wisdom when discussing sensitive topics, however, having honest and sometimes uncomfortable dialogue is needed.