上臉

to turn red in the face (while drinking) / to become smug (when complimented)

used in 上聲|上声[shang3 sheng1]

(bound form) up; upper; above; previous / first (of multiple parts) / to climb; to get onto; to go up / to attend (class or university) / (directional complement) up / (noun suffix) on; above

face / CL:張|张[zhang1],個|个[ge4]

lit. to climb all over sb / fig. to take advantage of sb's weakness