So I know a little sign language, and sometimes I find basic signing to be helpful with teaching students and children social skills and to combine language with using hands and symbols. In Google+, interestingly, there's a feature (described in this link below) where people can have interpreters when using the video chat feature. I think this could be a great resource to know about for those needing assistance, or wanting to learn more on that here.
https://www.businessinsider.com/google-hangouts-sign-language-support-2013-3- Amanda Tribley