Gather stones for people.

Offer to throw on behalf of unable Hajjis.

Guide people to the Jamarat.

Lower your gaze.

Remind people of the lives of the Sahaabah.

Read Qur'an with the Tafseer.

Do the authentic Dhikr of the morning and evening.

Make dua during your Sajdah.

Stand to the side of a gate and offer people water/tea as they leave.

Give major attention to shy people in your group.

Remind people of patience, why they came here, and the example of our Ulumaa' in Hajj.