Be cheerful and friendly. Then use his name in conversation once in a while. At this level you are free to ask appropriate general questions which reflect your interest and acceptance. You should be a good listener and avoid talking about yourself unless you are asked specific questions. Remind yourself that God has an interest in this person and that you are hoping for an opportunity to discuss spiritual matters.
Some people are more open and outgoing than others.
With some, an acquaintance will not develop further in a single encounter. Other people may be quite willing to talk about themselves and even reveal things of a personal nature even though you are virtually a stranger. In this case, your relationship may develop into a Casual Friendship right away. A casual friend may be a person at work or someone you know at a club, at church, or on a sports team. At this level you are free to ask some kinds of specific questions based on mutual interests.