One of his themes is that we all have a different range of strengths, and being aware of those can help you see where you will get the best effect and enjoyment. Go to https://www.authentichappiness.sas.upenn.edu/home, under questionnaires and then VIA survey of character strengths (not the brief strengths one). Log on to the site and you will be emailed a report which summarises the 24 strengths and highlights which are your character strengths.
The questionnaire has 240 questions, and produces a ranking of your personal strengths. His evidence shows is that it is likely to be your top three strengths that really give you a buzz and energise you and that understanding them can help you understand and plan your most effective approach to work. See the following short video about signature strengths.