to hesitate over what move to make (idiom); to waver
to shilly-shally
Definitions (粵典–words.hk)
動詞
比喻做唔到決定；揸唔到主意；猶豫不決 to be unable to make up one's mind; indecisive; to hesitate; literally "indecisive in making a move when playing chess"
你唔好舉棋不定，快啲決定啦！
你唔好举棋不定，快啲决定啦！
nei5 m4 hou2 geoi2 kei4 bat1 ding6, faai3 di1 kyut3 ding6 laa1! Don't hesitate and make a decision now!
Definitions (Wiktionary)
phrase, idiomatic
to be hesitant on what action to take