There's military codes we could use or cyphers we could decide on. Hard to do here if we're being monitored. Probably safe bet there's cameras in the trees and crap like that, but this is a good start.

I've dealt with crazy scientists and being the subject of 'experiments' kind of like this, if that's what this is. Knowing why they want us is the key, until then we adapt and find other ways to communicate.