Every few weeks, Amazon adds a couple of features to its Echo line-up or Alexa app, and today is no different. Rolling out now are two changes: a Follow-Up Mode for Echo speakers and the option to make calls, send messages, and drop in from tablets.

Starting with Follow-Up Mode, this can be activated on a device basis only for US English, and lets you ask other questions to your Echo without repeating the wake word "Alexa." The way this works is after Alexa answers your first request, the blue indicator light on the Echo remains active for a few seconds, waiting to see if you have any more questions, then turns off.

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