Playing the piano in the heavenly palace.-good.

Bag water chestnut-can't come out of your mouth.

All talk and no practice-talk.

Put down the axe and have a chat-all talk and no action.

Blunt in the mouth-easier said than done.

Put sugar in your mouth-sweet words.

Iron mouth and tofu feet-can you say no?

Flower shop owner's daughter-can play (speak) but can't turn.

Chess won on paper

Pull the reins like hair-that's easy to say.

Magpie seed-sweet mouth

Matchmaker's mouth-talking.

Swallows build nests-bitter mouth

On paper-empty talk theory can't solve practical problems.

Talk big-describe unrealistic and talkative.

Empty words are useless-empty and unrealistic words are useless.

Nonsense-a metaphor for nonsense. There is no basis for speaking; Not reliable.

Talk like a flowing river-talk like a waterfall. Describe eloquent, gushing.