It's a nice practical question, and I would love to answer practically. Still, I cannot think of an easy answer. You know, I do similar things every day. Still, I laugh and chat with my patients and sometimes tell jokes or sing to both patients and staff. They think I'm crazy!!
Have the inner confidence to be bold and try new things. Perhaps a coffee before starting work? I do. Puts me in a great spirit which last all day! The trick is to stay in a high consciousness. You can get this by being in a great environment; pausing to re-fuel in prayer at lunch times, and make it mandatory to meditate or pray interiorly before you leave home.
I can only speak for myself, but inner happiness takes away the boredom. See each thing as slightly new. No two things are ever the same. God bless.