If necessary, check your instrument and then close the case with attention.
Check your instrument to make sure it's in good working order (though you should have had it professionally looked at already).
Check your settings!" The instrument (the telescreen, it was called) could be dimmed, but there was no way of shutting it off completely.
Beastie Boys, "Gratitude" (1992) After the sample-heavy "Paul's Boutique," the Beastie Boys took up their instruments again for "Check Your Head".
There are lots of possibilities, such as baking a cake, frosting some cookies, sewing a new pair of trousers, building a rock garden, making something from metal or wood, painting with both hands (give it a try), playing a ball game, doing handstands, grooming your pet, playing an instrument, etc. Check your anxiety or boredom levels.
"I had to go check my instruments," one told me.
They climb aboard to scattered cheers, secure their safety belts, check the instruments yet again.
"He was completely ignoring our request to check his instruments," Christopher Kraft, the flight director, wrote in his memoir "Flight: My Life in Mission Control" (2001).
Engineers had been using the navigation and mast cameras to check out instruments and tools on the end of the rover's robot arm.
