J.R. S. answered 01/12/21
Ph.D. University Professor with 10+ years Tutoring Experience
Not sure what they'd say to each other. Perhaps, "let's get together". Or maybe "hey look...we're making water". But probably what the question is getting at, and there are certainly better ways to make the point, is that they are going to share electrons and form a covalent bond. So, what they might say to each other is ..
"Let's share our electrons and bond together to make a molecule of water".
(Disclosure: I actually feel silly even answering this question)