Steal the Show

To attract the most attention and praise at an event

Cost an Arm and a Leg

Something that is very expensive

Strike While the Iron Is Hot

To act at the right moment when circumstances are favorable

Be on Cloud Nine

To be extremely happy

Ball Is in Your Court

It is your turn to take action or make a decision

Storm in a Teacup

A lot of commotion or fuss about a trivial matter