What are some good ways to make a boy jealous?

Making someone jealous is immature, don't do it. Be the bigger person.

get him to have sex with you. half way through, before either of you orgasm, climb off him and tell him that your last boyfriend or his buddy (or whoever it is you want him to be jealous of) is better endowed and more skilled.

That will get him jealous.

Seriously, why would you want to make a guy jealous? That's just immature and cruel.

Most guys are insecure about something physical. Find whatever trait he physically wishes he had and then get a man that has this trait.

He will hang himself in jealousy.

dont do it, some guys may be more sensitive then others, unless u have a dead good reason (he cheated on you/ is an ex)

you may just do more damage then u want, then it can get ugly. just a hint of a warning.

shag his mate ;)

JOKE dont do that, that would make you a whore!

just tell him how some guy you used to have a HUGE crush on has been flirting with you and ask him for advice on your next move!

good luck xxx