5. Humiliate You In Public
If one of your friends has ever told your business out in front of the crowd or made you feel small in front of your friends and family, then this might not be a coincidence. If they have done it to you more than just one times, and you could not figure out why they did so and if their own intentions are bad or good, chances are they are jealous of you.
6. Insincere Happiness
If a friend knows that he/she is jealous of you, he/she might try to express overly happy when you have good news. In simple words, if someone puts a huge grin and acts more enthusiastically than necessary, it implies that he/she is trying to cover up his/her real feelings. Unfortunately, what your friend does not realize is that this kind of behavior seems very insincere and ridiculous.