Idiom Definition:
"to pay lip service"
to appear to agree with or support someone or something but to not really support, believe in or agree with it.
There is only talk (lip service) and no action.
Synonyms:
deceit, dishonesty, duplicity, empty, hollow, hypocrisy, hypocritical, glib, insincerity, jive, lie, mouthing, pretense, sanctimony, sanctimonious, sham, show, tokenism