Do you have a CPL? If you do, you CAN'T open carry at all. You CAN'T conceal carry here if you don't have a CPL. My advice would be to not open carry in a freaking toy store..there are most likely Karen's about and someone will call the police, they will come, they will question you about why you thought it was necessary to open carry in a toy store and just make a big scene and you'll probably end up on TikTok or YouTube. Google Washington state gun laws and go to the wa.gov site and educate yourself. But to answer your question, from what I've read, you're legally allowed to unless they have a sign posted at the entrance that says otherwise.
I'm not sure if you can take it in or not. I would call the store and ask them.
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