No. There is no law or mandate that prohibits Jehovah's Witnesses from having non-witness friends. Close interactions with "worldly people" (as all non-witnesses are referred to) are severely avoided. Being friends with a non-JW is considered to be disobeying God. Since Jehovah's Witnesses believe that living and acting in accordance with their teachings brings them closer to God, the only appropriate relationship they can have with anyone who does not share their beliefs is one of friendship. Having non-JW friends may appear to be harmless enough activity, but it can have serious consequences for a Jehovah's Witness. First of all, they might betray your trust by telling you things about themselves or their religion that aren't true. For example, a non-JW friend might tell others that Jehovah's Witnesses are evil or do bad things. This could lead someone who believes this about Jehovah's Witnesses to try and convince others to become one too. Also, non-JW friends may influence Jehovah's Witnesses by giving them ideas about other religions or cultures. For example, a non-JW friend might show a Jehovah's Witness a picture of a church building and ask them what they think about it, then go along to one service and comment on how nice it was.