Yes, it is an investment of time and effort to have lunch (or breakfast or afternoon tea) with your direct reports and get to know them as people.

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Researchers say the fan could be used to remind people that it is lunch-time by dispensing pleasant smells of fresh bread or pizza.

BBC: 'Smelly' fans remind people to eat

For example, Twitter is a social tool that requires very little time to use, it is much easier to send a quick 140-character tweet out during or after lunch than to carefully curate visually-driven boards on Pinterest.

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