screw up vs pull a face

screw up and pull a face both are verbs.

Word	Noun	Adjective	Verb	Adverb
screw up	No	No	Yes	No
pull a face	No	No	Yes	No

As verbs, pull a face is a hypernym of screw up; that is, pull a face is a word with a broader meaning than screw up:

screw up: twist into a strained configuration
pull a face: contort the face to indicate a certain mental or emotional state

Other hypernyms of screw up include grimace, make a face.

screw up (verb)	pull a face (verb)
twist into a strained configuration	contort the face to indicate a certain mental or emotional state
make more intense
screw or turn higher
make a mess of, destroy or ruin