I would say I am more shy than most people, although my friend is the most shy person thay I have ever met.

Hi LuzVioleta, The word that you are looking for is "shyer". Shyer is the comparative. The superlative would be "shyest". Here are the words used in examples: Sara was shyer than her friend LuzVioleta. The shyest person in the class was Sara. "Shier" is not a word, but you may see the word "shire". "Shire" is a UK English word that refers to a small district in the countryside. It is not related to shy/shyer/shyest. One final word, "shyer" and "shyest" are less common in conversation than "shy". In fact, English speakers will sometimes go out of their way to use the positive "shy" rather than the comparative and superlative. e.g. LuzVioleta was less shy than Sara. Sara was pretty shy compared to LuzVioleta.