Credit: George Pimentel/

The world just can't wait: What will Kate Middleton look like -- hair, makeup and, most importantly, her dress -- when she arrives at Westminster Abbey on Friday morning?

"Kate wants to look like herself," a royal source tells Us Weekly of the the 29-year-old's makeup strategy. "She doesn't want to look fussy or different. She really wants to look natural. She wants to look like a young Princess, and like the young lady she is."

As for Middleton's tresses, "Her hair will not be up," the insider insists. "The only way she'll have her hair up is if she's been talked into it. That's not the look she wants."

And what about that all-important dress? "She doesn't want any fussiness," the source says of the much-speculated gown. "She doesn't want to look older than she is."

Middleton, who first caught the eye of Prince William in a sheer number at a fashion show almost a decade ago,  "might show a bit of skin" with her gown, according to the insider. "Not a lot obviously, but something a bit modern. She doesn't want to look old or stuffy."

An interesting new detail about Middleton's choice of footwear: "She's not going to wear very high heels," says the source, "because she wants there to be a good height difference between her and Prince William. She's pretty tall, so she'll be keeping her heels low."