The best effort/impact ratio you can find to increase employee engagement and recognition is to automate birthday and anniversary celebrations. It is cross cultural, cross-religious, cross-generation, cross-timezone etc. And it makes people genuinely happy to receive some positive vibes during this special day.
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Billy Birthday's answer:
Billy is cheaper than the competition and is known to have a human-touch that other bots don't have.
reddit shell - Web-based shell for browsing reddit (pretend you're working)
Jolly for Slack - Automate birthday and work anniversary celebrations in your Slack organization.
HiddenMe - Hide desktop icons with a single click.
Donut Slack Bot - Get matched with a new coffee buddy each week in Slack
Screen Commander - Blank your screens at the click of your mouse.
BirthdayBot for Slack - Don't miss your teammates' birthdays!