Announce your Niyya (intentions) silently in your heart

Make your Qibla (prayer direction) face the direction of the Ka'bah

The Noble Qur'an: Al-Baqara 2:143-145 Thus We have made you [true Muslims -- real believers of Islamic Monotheism, true followers of Prophet Muhammad and his Sunna (legal ways)], a just (and the best) nation, that you be witnesses over mankind and the Messenger (Muhammad ) be a witness over you. And We made the Qiblah (prayer direction towards Jerusalem) which you used to face, only to test those who followed the Messenger (Muhammad ) from those who would turn on their heels (i.e. disobey the Messenger). Indeed it was great (heavy) except for those whom Allah guided. And Allah would never make your faith (prayers) to be lost (i.e. your prayers offered towards Jerusalem). Truly, Allah is full of Kindness, the Most Merciful towards mankind.

Verily! We have seen the turning of your (Muhammad's ) face towards the heaven. Surely, We shall turn you to a Qiblah (prayer direction) that shall please you, so turn your face in the direction of Al-Masjid-al-Haram (at Makka). And wheresoever you people are, turn your faces (in prayer) in that direction. Cerainly, the people who were given the Scriptures (i.e. Jews and the Christians) know well that, that (your turning towards the direction of the Ka'ba at Makka in prayers) is the truth from their Lord. And Allah is not unaware of what they do.

And even if you were to bring to the people of the Scripture (Jews and Christians) all the Ayat (proofs, evidences, verses, lessons, signs, revelations, etc.), they would not follow your Qiblah (prayer direction), nor are you going to follow their Qiblah (prayer direction).

Jazak allah
Jazak Allah
Thanks fOr Shar!ng