Any tips after getting a job at a department store after 16 years?

Recently, I got hired at a department store in my local area for the first time in 16 years. I was unemployed for 16 years, and i finally got a new job. My last job was walmart as a cart pusher, but it's didn't work out for me. After getting hired from somewhere, the job scene has changed a lot over the years. Any tips on 2020s work environments, keeping my head low and staying out of trouble.
Any tips after getting a job at a department store after 16 years?
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