play it cool

child's play

Something particularly easy or simple.

cool cat

A person who performs or appreciates jazz, especially one whose style of speech and movement is relaxed and rhythmic.

cool head

A calm, focused demeanor and mindset; a person having such characteristics.

cool one's heels

To wait, especially impatiently or restlessly.

cool one's jets

To become less excited, intense, or active; to exercise self-restraint.

go play in the traffic

To go elsewhere and feel free to engage in risky behavior; to get lost.

grandstand play

A successful play or other manoeuvre during a sporting competition in which one or more players shows off unnecessarily in order to entertain or impress the spectators.

hold-up play

A play where an attacker retains possession of the ball, while the teammates can move up the field.