Often people who have been in the area before have personal agendas they wish to follow. Since you are the leader, you should be informed as soon as possible about alternate arrangements of individuals and keep others informed as well. If you are having speakers address the group or making visits at offices or agencies, appoint someone to introduce speakers and thank them at each place. You don't have to do it all. These people have gone out of the way to see your group, over and beyond their own daily jobs.
Hospitality is very important in the Palestinian culture.
When a speaker arrives, always offer a hot or cold drink. Invite them to join the group for dinner, if appropriate. When you arrive at an agency, you will be offered drinks and your group should take time to enjoy the hospitality before expecting any tours or explanations. Sometimes, the use of numerous cameras may be offensive. Work with the group to appoint one or two members to photograph on these occasions.