They ask your name first to show their respect for you. In some cases, the signature may include your name and greeting. Then write down your name. This is respect. Of course, most stars only write their own names.

I remember that when Lu Yu interviewed Mr. Jin Yong, Mr. Jin Yong signed a short book and asked his name first: Wang Hailiang.

Mr. Jin Yong wrote that drinking should be massive, being a man should be massive, and reading should be massive. Inscribe Jin Yong