I would also like to add the suggestion that if you use SEND to think to a person, it turns on your personal channel for at least a minute. Or if you have your personal channel off, give you some kind of messaging about it.
>send BobTheBuilder Build me a cake, fancy man!
You project your thoughts to BobTheBuilder, but sense that they won't be able to return thoughts to you.
[ESP LISTEN PERSONAL to enable recieving personal thoughts.]
The second line could be left out, that could annoy some folk.