The actress also made a splash with her new hairdo.
Marley is the actress' Golden Retriever, although he doesn't appear on her social media a lot.
Luckily, fans got to see Brown hold him in her arms in this rare photo. The actress looked to be having a great time this summer, as she grinned from ear to ear and debuted a chic new short haircut.
Reality TV personality Jonathan Van Ness (best known for Netflix's Queer Eye and as host of the popular podcast, Getting Curious with Jonathan Van Ness), hyped the actress' and her new haircut up: "Living for the bob on you hun!"
Comedian Radel Ortiz left a funny note related to Brown's character on the hit Netflix show, "Is that 11 in a pool with a dog all happy and not crying in Hawkins? Growth 👏🏽," he joked.
Most recently, though, it looks like the two played Dance Dance Revolution and had some ice cream together; as Brown documented it all on Instagram a few weeks ago.
Next up for the actress is college. Brown revealed that she is studying human services at Purdue University, located in Indiana.
She spoke about her choice of major in an interview with Allure last month and said, "You learn about the system and how to help young people."
Although she's just starting her college education, Brown also shared that she is taking her classes online so that she can continue her acting career at the same time.
Along with Stranger Things, Brown is confirmed to star in the upcoming film, Enola Holmes 2, set to come out on Nov. 4 via Netflix.
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