YOUR EXPRESSION NUMBER
Your Expression Number, taken from the consonants in the full name by which you are usually known, represents how you appear, act, and are in life - you as others see and know you. Therefore, the expression number is the key or major number to keep in mind when examining your name. It is the combined inner forces of guidance as they work with and use the outer you - your personality to live and express your life.
If you are always known by a nickname or a shortened name (i.e. christened Susan but always known as Sue) then you should this to calculate your Expression Number. Ignore any middle names unless they form part of the name by which you are known.
The letter Y is counted as either a consonant or a vowel depending on how it is pronounced, e.g. in the name 'Young' the letter Y is a consonant, however in the name 'Murphy' the letter Y is classed as a vowel as it is pronounced as a vowel ('ee'). One golden rule is if there are no vowels in your name whatsoever (e.g. Lynch) then Y is always classed as a vowel.
Using Taylor Swift as an example, her Expression Number - 1 - is calculated as follows (the letter Y is counted as a vowel given the way it is pronounced)