Basically, unless you yourself are Scottish, try not to lay it on too thick. Keep most words simple and as close to English as you can, but change the dialect. It's hard to explain.
Example: I didn't know she was so pretty.
With an accent: I dinnae ken how bonny the lass was.
Easy to read, but you still heard an accent in your head didn't you? There are a few resources available on the internet, the most popular one for English to Scottish dialect I've seen is in the link below
Remember, you're trying to make this character a believable person, not a caricature.
Minerva McGongall is Scottish and has a Scottish accent.
A strong Scottish accent.
No, Craig Ferguson is Scottish and therefore has a Scottish accent.
Shrek has a Scottish accent.
Shrek has a very mild Scottish accent, possibly so that everybody can understand him.
An Irish accent is typically characterized by a lilting intonation and distinct vowel sounds, while a Scottish accent often involves rolling r's and a more staccato rhythm. Additionally, Irish accents vary significantly across regions while Scottish accents also have regional variations, such as the distinctive Glaswegian accent.
pretend in a few conversation's that you have a Scottish accent
Definitely!
She had a charming French accent that made her speech sound elegant and sophisticated.
Italian with an accent of scottish
See for yourself here: [[http://sites.google.com/site/lrnthaccnt/how-to-do-a-credible-irish-accent]] and [[http://sites.google.com/site/lrnthaccnt/how-to-do-a-credible-scottish-accent]]
Cho Chang is a character in the Harry Potter series of books by J.K. Rowling. She is of Chinese descent.