Payment for babysitting grandchild and not my full time job

Hi! I babysat my grandbaby in my home for short periods of time in 2023 and was paid $800. It is not my full-time job. Under the turbo tax info, it says it can be put on 1040 line 21 but how do I get it there? I don’t see questions in the software that will put it in that spot and if this is even how to do it. I am not employed by my daughter and I am not self-employed as a sitter.