Oh boy is it easy to look for entertainment and distraction on your computer or cellphone. Facebook, my email in box or Instagram can seem quite interesting when I'm supposed to be working. Just a quick look, maybe something fun or important came in, I'll go right back to work. Or a quick phone check while you're with friends, or before bed, or God forbid at the dinner table. You never know, emergencies do happen, maybe someone really needs to reach me right now. It drives me nuts when I see a party around a restaurant table all staring into their phones instead of enjoying each others' company. Or a parent at the playground more interested in their phone than their toddler. Or a ringing cellphone in the middle of yoga class, and worse during savasana.
Recently a woman was killed in Manhattan when she walked across the street tapping away on her phone and failed to see the oncoming car. Shut them off every once in a while, those devices, and enjoy your kids, your dinner partners or your yoga class. Close your email and internet while you're working. Here a related former blog post on being in the moment. One last thought - your behavior is a model for your children.