Neutral:
* Trusting: This emphasizes the positive side of being easily convinced, but it can also be used to imply naivete.
* Credulous: This is a more formal word that means "tending to believe readily."
* Open-minded: This implies a willingness to consider new ideas, but it doesn't necessarily mean someone is easily fooled.
Positive:
* Naïve: This can be used in a charming or endearing way, especially when talking about someone young or inexperienced.
* Innocent: This suggests a lack of worldly knowledge or cynicism, which can be seen as a positive trait.
It's important to consider the tone and context when choosing words to describe someone's gullibility. Avoid using terms that are demeaning or insulting, as they can be hurtful and disrespectful.