How to lock in hair extensions?

ok I have straight hair extensions and my hair is wavy how can I make my hair extension wavy also?

I bought some Oceana's clip in hair extensions, they're 100% human hair, I dont know if they're virgin or not.

Where do you buy hair extensions? I don;t wann buy them online. How muich do they cost?

How can I mend split ends on my clip in hair extensions?!?!?! its so irritating.

I want to dye my hair and the extensions also but I dont know how long you have to wait to put in extensions after you die yo...

I have to put on some hair extensions and I want to know about some of the best places where I can get them.

whats the besttt brand of clip in hair extensions CLIP IN!! not the kind you get glues or woven into your hair

Where can I get scene hair exstentions??

I have no idea what they are made of, like synthetic or real hair. I've looked it up all over & can't find a thing about it.

can you dye hair extensions? could it go terribly wrong?