One way that we can practice gratitude is to create gratitude rituals associated with a time of day. For example:
Mealtimes: We can make a routine at mealtimes to share what we are thankful for. When we do this, we increase our ratio of positives to negatives, we increase fondness and affection, and we get to know each other better.
Bedtimes: When we tuck our children into bed, we can take time to share what we are thankful for. When we get into bed, we can take 5 minutes to write down a few things we are thankful for in a journal.
Any other daily routine: We can think about what we are thankful for every time we brush our teeth. One of my gratitude rituals is to use my "Thankful" app when I get on the elliptical every morning.