Do not unplug completely:

Use social media to stay in touch. Blogging or simply posting updates to social media can achieve that connection. Include quick updates of your trip and examples of what you are learning so your network will see the value of your travel experience. It is easy today to stay in touch with your contacts in the US. Online tools and smart phones make it simple google hangouts and Skype for video calls, social media for updates, email for Newsletter and the list goes on.