@EileenKCarpenter Similarly, do not use public charging stations. Do not let someone you don't know (e.g. tradeshows, seminars, etc.) to plug something into your devices to demonstrate. Turn bluetooth OFF when you don't need it. If you don't use NFC, disable that, as well.
If you are traveling internationally, think about buying a cheap burner (e.g. at Walmart) to take with you, and leave your smartphone at home. You should be able to forward you calls to the burner.
YMMV, but use yer noggin.