Embarrassed, maybe

• Visibly embarrassed
• Having a rosy glow
• Red-faced
• Reddening
• Drunk rating at the front red in the face
• Red in the face
• Obviously embarrassed

Wiktionary Word definitions in Wiktionary
a. blushing; ruddy. (First attested in the Mid 19 th century.) (R:SOED5: page=5) adv. blushing; ruddy. (First attested in the Mid 19 th century.)

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Ablush \A*blush"\, adv. & a. [Pref. a- + blush.] Blushing; ruddy.