Doing the same thing day in, day out can become so mundane. Just because it's work, doesn't mean it has to be dull. The energy a pat on the back or some encouragement can bring is amazing. I can't say it enough, PRAISE is your best friend! Also, get a bit personal, ask how family is doing, what are the weekend or Holiday plans. Starting a short casual conversation breaks up the monotony of the day. Keep it fresh... Don't keep doing the same thing over and over. It's important to have an end of shift huttle including everyone to discuss what went good and what needs improvement. Is there is a better, more efficient way? Have the crew brain storm. Give them mental responsibility as well as physical responsibility.