Use the app that you would use with whatever Smart device you have. I have Hue and Harmony hub and Lyric Thermostat and use the apps that go with each when it's later at night and others would be awakened by me speaking. Lyric app for the lyric, Harmony for the Harmony, Hue for the lights... keeps it quiet and lets me have full control of things I want to control.
If you just want to get your Brief or something Alexa alone is the mechanism for... I think it may be nearly impossible to do that, as that is her sole purpose, Voice Command.