The first impression is the first condition for an interview, and copywriting planning is a profession that needs "quietness". So a steady appearance is a must! You don't have to wear a suit and tie. It is more appropriate to wear some calm clothes such as shirts. Choosing a trendy satchel will also add a lot of impression points. Copywriting is about trends! How can you write a copy that leads others' trend without fashion?
Interviewers usually ask the same questions, such as your five-year plan, to test whether you have ideals and ideas.
There will also be some questions about morality. Big companies generally put morality first. You can have no talent, but you can't have no morality!
In this era of information expansion, the boss is most afraid of revealing company secrets, so it is very important whether you are honest or not.