It is respectful to face the Qibla, though not strictly mandatory if you are at a grave.
Alhamdu lillahi rabbil aalameen. (All praise is due to Allah, Lord of the worlds.)
: Have a clear intention in your heart that you are reciting these verses to send blessings to the deceased or for Barakah. Food (Optional)
: Recite 3 times (reciting it three times is believed to grant the reward of one full Quran). Surah Al-Falaq : Recite 1 time. Surah Al-Naas : Recite 1 time. Surah Al-Fatiha : Recite 1 time.