Good Job is Slate’s advice column on work. Have a workplace problem big or small? Send it to Laura Helmuth and Doree Shafrir here . (It’s anonymous!)

Dear Good Job,

I’m a man in his mid-30s who holds a specialist role in an organization I like. I’ve recently started sharing a closed workspace with an early 20s intern who works in a different department. She’s a nice, professional, bright younger person who seems to be doing quite well in her role, and is generally an ideal person to share an office with.

The only catch is that her behavior towards me seems to be getting flirtatious in a way I don’t totally know how to address. It involves her thong.

One day not longer after she began she walked back from what must have been a meeting, sat down at her desk, and I noticed her ho

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