Whatever Du’a we remember, we should recite as this is a place where supplications are accepted.
Then while going from Safa to Marwah, walk with a medium speed.
While coming down from Safa, recite the following prayer:
Allahummas Ta’amilnee Bi Sunnati Nabiyyika Wa Tawaffinee ‘Ala Millatihi, Wa A’aidhnee Mim Mudhillatil Fitani Bi Rahmatika Ya Arhamar Rahimeen.
Between the "Meelain-e-Akhdharain" (where green lights are there) walk fast. Women should walk here also at their normal pace.
At the "Meelain-e-Akhdharain," the following Du’a should be recited:
Rabbighfir Warham Wa’afu Watakarram Watawaz ‘Amma Ta’alam, Innaka Ta’alamu Ma La Na’alam Innaka Antal A’a Azzaul Akram.
In this way from Safa to Marwah, one round is completed. On reaching Safa, it will be 2 rounds. For those who start from Marwah, the first round from Marwah will not be counted.
On reaching the summit of Marwah, recite the Dua in the same way as on Safa. Then come back from Marwah to Safa. The last (7th) round will be completed on Marwah. Walk fast in the "Meelain-e-Akhdharain."
It is Mustahab (commendable)to offer 2 Raka’at Nafl after Sae’e. As given in Fatawa A'alamgiri.
After completing the Sa’ee, then shave the head. Be it Umrah of Haj, it is Wajib to shave or get the hair trimmed on opening (coming out of) the Ihraam. Not doing this will make Dam Wajib.
It is better to get the whole head shaved. In case somebody is getting a haircut, it is a Sunnah to get the hair trimmed more than the length of one finger pad. If hair out of one-fourth of the head is cut, then the Wajib is done, but this is not entirely free of undesirability.
Women can get more than a finger pad’s length of hair cut from either the whole of their head or a fourth of the head.
While having this done, the women should not keep their head uncovered in such a way that others can see them.
It is Wajib to get this done in the limits of the Haram. If it is done outside the Haram, then Dam becomes Wajib.