I mean it was really easy to tell them apart in DH1 because George's ear was wrapped...and in DH2 Fred wore green and George wore sort of a purplish color..those were the only times i told them apart!

My friends get so freaked out

My friends think im crazy! but its so obvius which twin is which cuz George/Oliver, is two inches taller than Fred/James:) plus, James/Fred is cuter:) im SO proud of myself:)

George is taller.fred has a smaller rounder head.freds nose points upward while georges points down.people sometimes cant tell them apart, but if you cant, just look a little closer.

In the movies or in the books? I can tell them apart really easily in the books because of the way they say things. In the movies I find it harder though.

After DH definately ..... O_O

Not until George's ear made it obvious. I'm bad with differentiating between identical twins.

In the books, you can definitely differentiate. HP Wiki sums it up pretty well:

"Fred Weasley was the more outgoing, daring, and sarcastic of the twins. During the rescue from the Dursleys in 1992, George picked the lock on Harry's bedroom door with a hairpin, while Fred insisted Muggle tricks were important to know, even if it was "a bit slow",[4] and "accidentally dropped" a Ton-Tongue Toffee for Dudley Dursley to find and eat. Fred concocted the scheme of trying to fool Albus Dumbledore's Age Line to get into the Triwizard Tournament, though it was unsuccessful, and was in favour of blackmailing Ludo Bagman after he defaulted on a bet, while George had reservations."

yeah i do, because i prefer Oliver <3

It's honestly so hard... but, I can tell in both DH parts because of George's ear...