Give me the steps to purchase a new pair of shoes.

First, determine the style of shoes you desire. (E.g. sneakers, sandals, tuxedo shoes)
Second, check your shoe size. 
Third, browse online or in a store and filter your choices according to your budget, style and availability. Try the shoes on before purchase if possible to ensure a good fit and comfort. 
Fourth, select your shoes and proceed to purchase. 
Fifth, purchase the shoes either online or in the store.