happy and excited;in high spirits;in great delight

A single spark can start a prairie fire

empty promises;to talk off the cuff

a new broom sweeps clean

New brooms sweep clean

the new replaces the old (metabolism in biology)

luxuriant growth;flourishing;thriving

frank and outspoken;to say what one thinks

A good conscience is a soft pillow

have a tacit understanding; give tacit consent; tacit understanding

May all your wish come true

The little boy sat there smiling, as happy as a clam

to be frank and unreserved;honest and straightforward (lit. heart and mouth as one)

absent-minded

a smile to hide one's hate

cautious and solemn;very carefully;prudent;gently and cautiously

Make a mountain out of a molehill

A stitch in time saves nine

Patience is a virtue

like an ant on a hot pan