Zambian sign language?

I am looking for any speakers of zambian sign language. If you know it or know anyone who does, please Private Message me. I need to understand what is being said in a short video. I would be really really grateful.

A bit of a weird story, but I am Lebanese and worked at a charity that funded a boarding school / orphanage in Serenje, Zambia (It is called SOCH), and earlier this summer had on-site work to do. I worked with some of the deaf kids, and while I learned a lot of Zambian Sign Language to be able to communicate with them, now I was sent a short video of one of the kids (who wanted to talk to me), and I am kind of struggling to understand parts of it. It would mean a lot to me if you could help.