Blushing
/ˈblʌʃɪŋ/
verb
To become red in the face (and sometimes experience an associated feeling of warmth), especially due to shyness, shame, excitement, or embarrassment.
“He wasn't used to this much attention, so he blushed as he saw dozens of pairs of eyes watching him.”
To be ashamed or embarrassed (to do something).
To become red.
noun
The act of one who blushes; a blush.
adjective
Showing blushes; rosy red.
“the blushing bride”