I've encountered a fraud in an app called Hellotalk a week ago. She told me she is a fourty years old American lady and send me many pictures about her and her family, so I believed her. Then I chatted with her for a while, she told me she wanted to sent me a gift. I tought all American were enthusiastic like her and I'm shy refused. I also planed to send a gift to her. But when she told me to add a alipay account called US postal service, I perceived something was wrong, why it used alipay rather than paypal, and it needed me to give it 400RMB. Then I realized she is a fraud, I hadn'd transferred money and blacklisted her, or maybe him. Although I haven't lost my money, I am still sad that my feelings have been deceived. I was so happy for having a foreign friend, but finally I found she is a fraud.😢 Be careful when you chat with a stranger! In the end, I want to teach you an idiom '天上不会掉馅饼', which means there is no free lunch in the world.