Sefer Ha’mitzvos Ha’Katzar (The concise book of mitzvos) By the Chofetz Chaim
This book lists the Torah mitzvos that can be observed today
Second Section – the Negative Commandments
22. It is a negative commandment not to listen to a person prophesizing in the name of an idol
As it states in Devarim (Deuteronomy) 13:4, “Do not listen to the words of that prophet.” Do not speak a long discussion with him or ask for a sign or a wonder. If he does a sign or a wonder, ignore it. Anyone that thinks this sign may be true, has committed this negative transgression.
This applies in all places and at all times, for men and for women.
4. Be kind to yourself. Speaking badly even about yourself is unethical.
הלכות שמירת הלשון 