Sometimes all it takes is a hug, a touch on the arm, a kiss on the cheek, or a squeeze of the shoulders to make someone's day. So when you are with your loved ones, don't hold back on affection.
It is often said that actions speak louder than words, and nothing says "I care about you" better than a spontaneous hug. Let them know you care and be generous with your affection.
Those who give affection get as much satisfaction out of it than those who receive it. In fact, hugs have been shown to reduce heart rates, improve overall moods, lower blood pressure, and increase nerve activity, just to name a few benefits of affection.
Create an "affection rule" in your house. At the same time everyday, regardless of what is going on, make it a rule that you must hug at least one other person in the house. No exceptions. If you are in the middle of doing dishes, or vacuuming, or reading, or watching TV, stop. Take a moment to give affection to your loved ones.
Affection is not comfortable for everyone. If you aren't comfortable hugging or holding a hand, simply smile or offer words of encouragement.
Some interesting research stories on The Effects of Affection.