"It would be a good idea to exchange Numbers." Sadie agrees, "Although if you would like that to remain private between the two of you I'd suggest disconnecting from the Network before you do. You can just rub out the numbers or cross them out tends to be the easiest way to do so." She advises the mother and daughter duo.

Sadie is quiet for a minute before piping back in as he mentions Echoes. "As Walter said, changes can happen but it's hard to pin down the exact causes because it is different for everyone. Just...um, if you feel a hollow feeling and your heart starts to pound harder maybe find somewhere to sit down until it goes, it can be a bit disorientating. Oh, and sometimes the change isn't immediate, it took my eyes a while to change."