Hi, Can you be more specific: if you are completely alone do you stutter when you say 'Siri' or only if there are other people present? And what would happen if you said something like "splendid" when alone -- into your iPhone -- that would be a word that starts with S, but which would not awaken Siri. So the second question is whether the fact that Siri might respond to your speech causes her to be a 'listener' who increases your speaking stress.