Now Easter has gone the guests and visitors will be also so if you need to write about them in Chinese here are the characters.
The character 客（ㄎㄜˋ） means guest or visitor. Here is the stroke order animation and pronunciation. Here are the individual strokes for writing the character. Here is the definition in Taiwanese Mandarin. Here is the evolution of 客.
客（ㄎㄜˋ）人（ㄖㄣˊ） – a visitor, a guest
客（ㄎㄜˋ）廳（ㄊㄧㄥ） – a living room
客（ㄎㄜˋ）戶（ㄏㄨˋ） – a client, a customer