gape 
/ˈgeɪp/ verb
gapes; gaped; gap·ing /ˈgeɪp/ verb [no obj] 1 : to open widely
▪ Her mouth gaped open. 2 : to look at someone or something with your mouth open in surprise or wonder — often + at ▪ The crowd gaped at the princess as she passed by. ▪ What are you gaping at? synonyms 1gaze
▪ Her mouth gaped open.
