Typical British Classic Man on Holiday

Typical British man abroad is so recognisable by his pale legs, socks with shoes or sandals and poorly fitted shorts in wrong colours to suit him and shirt or t-shirt not looking very complimentary. What he needs to consider? Do my shorts need to be a deep or light shade to suit my skin tone. Are they the correct length to suit my legs? (an inch/cm can make a difference. What style compliments my neck a collar,  V neck or round?