Answer- If she is already your cousins girl friend then you can't ask her out, she is already going out with someone, just wait until they break up, or move onto someone else. Your cousin is your family, you will have him forever, but a girlfriend is usually only temporary.
You dont. Not while she is still with your cousin, anyway. Relationships like that are messy and i would recomend that you try and avoid drama in your family. But if you really want to be with her, you should wait for them to not be together anymore.
Ask her to be your girlfriend.
Ask his girlfriend
Ask your friend if the person likes you and if she does then ask her out
Ask her !
Ask him if he wants to go out with you or tell him you like him!
Ask her.
It most likely means he likes you but is either to shy to have a girlfriend or is not ready to have a girlfriend.
Just ask her you never no what she will say
definately. Ask him if he likes you.
Ask him to kiss you and be on with there lives.
ask him