During your stay in Makkah abundantly increase your recital of the Kalimah Tayyibah:  Laa ilaaha illallahu Muhammad-ur-Rasulullah, and Istighfaar: 'Astaghfirullah....

If you desire, give an excellent gift to your near dear ones, friends who are living,  and especially those who have passed away the gift of the rewards of Tawaaf and  Umrah will please their souls very much. There will be no reduction from your own reward for these acts.

Rasulullah sallallahu alayhi wasallam has said that the water of Zam-zam will have the desired effect of whatever intention is made at the time of drinking Zam-zam. Zam-zam should be drunk with the intention of quenching the thirst of the day of Qiyaamah (resurrection). It should also be taken with the intention of Shifaa (cure) from spiritual and physical ailments. It is commendable to drink Zam-zam with the niyyah of being granted the Taufeeque of conforming to the Sunnah of our beloved Rasulullah sallallahu alayhi wasallam.