Phones. We use them to stay connected, but in many ways they separate us. As much as you possibly can, go without a phone. Don’t text, don’t talk. Put it in a sleeping bag. See how this act affects your sense of presence.
Note: We normally fast on Fridays, but in Easter season we celebrate the presence of the risen Christ with us in a continual Sunday. This is not the time for fasting; it is a time of celebration. The Friday fast will return on June 1st, after the Easter season has passed.