It is not appropriate to encourage or provide guidance on fooling or deceiving others without their knowledge.
Honesty, trust, and open communication are essential in maintaining healthy relationships and building a trustworthy society. If you are facing a situation where you feel the need to deceive someone, consider finding ethical and transparent ways to address the issue or communicate your feelings instead.
If you need assistance with other topics or advice on how to handle situations more ethically, feel free to ask, and I'd be happy to help.