McGrath ends his book by encouraging the reader to only use arguments that are personally satisfying because if they are not, they lose their effectiveness humanly. He explains the importance of knowing yourself (both strengths and weaknesses) so that apologetically you have a starting point from which to spring (E.g., he was an atheistic scientist before conversion and integrates this background in his apologetic).
McGrath points out that apologetics is done either through public speaking, authoring books, personal conversations and a life lived to God’s glory. He further accentuates the need to learn from other apologists by scrutinizing their approach to the subject, their interaction with dissenters, etc. and reverse engineer their arguments. Here, the “design” of apologetics is observed recalling that it’s not just a discipline but also an art.
After learning the aforesaid, the apologist must then make the arguments and approach their own by incorporating who “they are” in the interaction. Lastly, he encourages apologists to practice in front of peers who can critique and encourage them on the journey. Perhaps gathering a group of like-minded people who meet regularly in order to help sharpen and enhance apologetic skills would be a good start.
Above all, he explains how critical it is for apologists to be part of the Christian community where they receive and give support to the local church because (other than it being biblical) the apologetic battles are taxing on the soul and can be dangerous to it.