There's a chance you don't really want to talk to your Alexa device. On an Echo Show with a screen, you have the option to set up "Tap to Alexa"—a finger-pressing-a-button icon that is always on the screen (you can move it around). Tap and you get a screen with options for typing in a quick question, checking the weather, setting a timer, getting news, setting an alarm, checking the shopping list, and more—you manage what is on the screen. It's great for checking the Echo Show in the dark of night when it might disturb someone to talk—or if you use the Show as an alarm clock by the bed.
To place the Tap to Alexa button, go to Settings > Accessibility > Tap to Alexa. To manage the Tap to Alexa screen, touch the icon and click the Manage button. If you click Add New, you can type in something you would frequently ask Alexa—such as launching Echo Show skills—and place it as a button so you don't have to repeat yourself.
Source : pcmag.com