Yes, say their name.

様 (san) is not the more polite (nicer) word in Japanese. The polite (nicer) word in Japanese is sama ( さま). It is from the Japanese dictionary: 様【さま】 (n,suf) (1) (pol) Mr, Mrs or Ms; (2) used (gen. in fixed expressions) to make words more polite; (3) manner; kind; appearance; (P). My answer is the person's name + 様【さま】is the more or polite ways for you (あなた) Note: sorry Chi, you email me to make the incorrect answer the correct answer, I cann't do it, In fact, sanma (さま) is the more polite (nicer) word than san (さん) in Japanese.

そっちは

you've alreay got your answers, say thier name with SAN to the end =)

the persons name, or こちらは if introducing someone. （＾＿＾）