While well-intentioned, asking ‘Can I pick your brain?’is overused, vague and way too open-ended. When conversations start this way, there’s no telling where it’ll go or how long it’ll take. https://www.cnbc.com/2019/07/09/stop-asking-can-i-pick-your-brain-harvard-says-this-is-how-successful-people-ask-for-advice.html