Blushing

Blushing is a form of expression where one's face can turn pink or red from either embarrassment or shame. One can also blush when a certain someone they like shows them some attention.

Smurfs: The Devereaux Story
In Smurfs: The Devereaux Story, Benny Smurf is prone to blushing when he's embarrassed or acting coy. In the story, Time for Adventure!, when Bash sang the beans song, Benny blushes out of embarrassment. Eska finds Benny's blushing attractive.

In The Observing Begins, Peewit blushes out of love when he saw Julia's face.