Getty Images This story is available exclusively to Insider subscribers. Become an Insider and start reading now. Social rejection in the workplace can be painful. It feels like middle school all over again. While you mustn't assume the exclusion is intentional, it's worth examining your behavior. Send questions about your workplace dilemmas and challenges to rknight@insider.com. Welcome to What's Working?, Insider's new work-advice column. It solves your real-life workplace dilemmas with expert advice and research-backed tips, tricks, and life hacks. Got a narcissistic boss? A passive-aggressive coworker? Or a tricky sticky situation at work? What's Working? can help! Send questions about your workplace challenges to rknight@insider.com. Include your contact details, even if you want to stay anonymous. Letters may be edited.