神气 (shén qì): expression; manner; vigorous; impressive; lofty; pretentious

My little brother put on his newly bought Superman cape, wore a paper mask, and stood proudly in the middle of the living room, loudly announcing that he was a superhero.

He got a perfect score on the exam. As soon as he got home, he proudly handed the report card to his mother, his face full of a proud smile.

That big rooster strutted proudly around the yard, occasionally raising its head and crowing loudly, as if the whole yard were its territory.

As soon as she learned to ride a bicycle, she proudly circled the open area in the neighborhood again and again, waving to the children nearby.

After retiring, Grandpa gets up early every day to practice tai chi. His movements are smooth and he looks full of energy—you would never guess he is already over seventy.