They must be able to overcome differences in communication style (since different generations communicate differently) and be open to seeing situations from different angles.
Ushahidi (testimony in Swahili) is an open platform for anyone looking to gather data specifically around human rights crisis situations and visualize it on a map or timeline.
If they feel positive about you, if you personally endorse it without being dogmatic, and if you provide real-world examples or stories of how this process has been helpful in similar situations, people will be more likely to be interested in and open to your message.