Absolutely nothing that is normal. But it's not nice so maybe you should try to hold up on it because sometimes that "getting him/her jealous" behaviour can backfire on you and simply make a royal mess of things.
jealous.
Getting a boy jealous is not right. If you do try to make him jealous then your not being yourself because if he doesn't like you before you tried than he is not the right guy.
They may be jealous or not like that certain person. Or maybe there a hater. or they mite be gay.there is nothing wrong with that.
Sometimes because they are jealous of you. They may think your pretty.
If it is a guy they like you. If it is a girl they either hate you or are jealous of you.
They're jealous of his awesomeness and his good looks.
Lack of communication and affection can be the cause of some people becoming jealous because they do not belong to a group of people they wish to be involved with; perhaps not asked out for social functions; ignored by their peers or gossiped about. This leaves the person feeling isolated; sometimes angry and they are obsessively jealous is some cases because they cannot understand why they feel so left out. Jealous people hurt inside, while some jealous people are simply too lazy to try and feel life should be handed to them on a silver platter to feelings of not getting what they should get out of life like others.
if he doesn't like you then he won't get jealous.
Erm im going to answer this question with another one. Why would you pretend to be jealous? If you really like this girl, im assuming its a girl i could be wrong, you wouldn't need to pretend to be jealous. And you don't need to show off, she'll like you for you not who you pretend to be.
Depends. Directioners should like her and not be jealous of her and normal people might not even know her.
Chocolates... they have always been jealous of cheese
Jealous Say JLS Fast And It Will Sound Like Jealous