I know this isn’t the same thing, but I do something similar when ordering stuff when I’m with someone else. I always make them order and I can never say what it is I actually want. I always leave stuff out (that I do want), get smaller versions and just…try to make them guess what I really wish to get. I just can’t say it out loud.
I know it’s honestly annoying as fuck to everyone around, but I can’t stop…

I think it’s partially because of my mom. She used to sometimes shame me for getting the Ls instead of Ms, “ordering too much” (“your order is too expensive”) and just being a glutton in general (oh how the tables have turned…)
Idk, I’m probably just stupid.