Your completed Covenant form goes to presbytery, Conference and the General Council where it helps the church in projecting the total level of support in a given year. Certainly, if the individual projects agree. Check with your Conference office for some project names and addresses and telephone them first. If the project staff or volunteers find it difficult to meet with you on their turf, you might consider inviting one of them to visit your congregation to talk about the work. You may want to track down how these samples are distributed in your church.
Good videos are available.