Hem and haw
Definition 1 of 2
Pro Tip 1/3Conversational Use
Mostly used in casual, informal conversations to show uncertainty or delay. 
When choosing a dessert, she hemmed and hawed between cake and pie.
Pro Tip 2/3Negative Implication
It often implies frustration when someone can't make a decision promptly. 
The team hemmed and hawed, irritating the client who needed a quick answer.
Pro Tip 3/3Indecision
Used to highlight someone's struggle to make a choice or take a stance. 
He hemmed and hawed over the menu, unable to decide what to order.