How can one prove their Muslim identity while in Mecca?

One can prove their Muslim identity while in Mecca by performing the religious rituals of Hajj, such as the Tawaf (circumambulation of the Kaaba), praying at the Grand Mosque, and wearing the traditional white ihram clothing. Additionally, carrying identification documents that show their status as a Muslim, such as a passport with a visa for Hajj, can also serve as proof of their Muslim identity while in Mecca.