Answer: Become like and Remain like principle.
Step-by-step explanation:
The two lifestyle principles used by Paul are "Become Like and Remain Like" principle.
Become like principle: Talman and Anthony discussed about how we should become like the people we want to evangelize. It does not mean we want to commit sins with them, but that we are to understand them, learn about their culture and become part of them.
Remain Like principle: This implies that new followers should be helped in remaining in their culture in order not to believe that the missionary’s cultural practices are the substance of gospel.
Today, believers are mostly uncomfortable with the strategies because they mix the gospel of the salvation of Jesus with the cultural aspects of Christianity thereby failing to separate the two strategies.