It’s not super obvious like some other people. I don’t do anything with diapers and I don’t own a pacifier or anything like that. But I have a habit of sucking my thumb sometimes and I’ve been told by people who have looked after me in the past that I talk like a child and do a lot of child like activities
that doesn’t sound too bad. ik a girl in hs who would suck her thumb occasionally & in college ik 2 girls who both baby talk. if you want to conceal it more I’d say try lollipops or mints to suck on instead of a thumb, ik a guy who has pica and chews on a water bottle lid sometimes too, and as of the baby talk I really only took notice of it when my friends would get super whiny. so if that’s the case maybe just call someone who wouldn’t mind and get it out your system. sorry if bad advice