be in the hat

If the EEG device can be found to be consistent with changes in brain activity observed by researchers, then a hat to warn of impending errors may become a reality.

如果脑电图装置能被发现与研究者观测的的大脑活动改变相符合，那么一个帽子能预警即将发生的错误可能会成为现实。

Sharing your unique content is something that would be hard to do if you had your SEO hat on, but in the social world, its fine.

分享你独特的内容是很难做的，如果你有自己的量化搜索引擎帽的话，但是，在社会世界里，这是很好的。

I was worried people might laugh at the little boy in the pink hat, and by extension, be laughing at me.

我是担心人们会因为儿子戴着粉红色的帽子而嘲笑他，进而嘲笑我。