yeah i think maybe the problem isn't so much that other characters aren't picking up on a problem, but maybe op isn't giving the right cues that someone else could reasonably pick up on.

if my character is lying through their teeth and you note that despite the character being good with lying and the other calls them on it wihout being a psychic, that's infomodding. if my character is a shitty liar i will include a number of tells in their body language, maybe mention how obvious they'd being about not being honest. the other character calling them on that isn't infomodding, it's reacting to what i've given them to react to.

write your body language. it's more fun for both you and the other player when it's picked up on.