What is boldness? Boldness is the Christian virtue of being able to speak about God and His gospel with frank, unashamed openness, unhindered by the fear of man (or what people will think). Boldness of speech is consistent with a variety of personalities, gifts, and callings, and is consistent with discretion, sensitivity and gentleness.
More resources on the topic of evangelism: https://illbehonest.com/topic/evangelism
Chuck Vuolo pastors at http://www.newlifemd.org/