What is a word that describes doing something with joy and positivity?

The word that best describes doing something with joy and positivity is "happily." This word conveys a sense of cheerfulness and contentment while engaging in an action, implying a positive emotional state. It embodies the idea of performing tasks or activities with a light heart and a bright spirit, which aligns with the concept of joyfulness.

While "lovingly" suggests doing something with affection and care for others, it does not necessarily convey the joyfulness associated with "happily." "Carefully" indicates being cautious and attentive, which focuses more on the manner of action rather than the emotional state. "Excitedly" expresses a sense of enthusiasm and eagerness, but it can imply a more intense, sometimes frantic energy, which may not always be linked to a clear sense of joy. Thus, "happily" is the most fitting choice for expressing actions done with joy and positivity.