How to get close to a guy/get his contact?
Recently I realise that I'm interested for a guy that join the company few mths ago. I'm a vendor in that company and situated at level 1 while he is at level 3. Initally, he noticed me 1st because when I went up to level 3 sometimes, he would give me a smile etc and I will smile back. Soon I begin to take notice of this guy. Not long ago, we finally got a chance to chat in the lift when he was with his colleagues. He talk to me 1st asking which company I was from and stuff like that. Maybe because there was people in the lift so I was shy and forgot to ask for his name and talk more.
I wish to get to know him better but I'm leaving this place soon and to be posted to another place in a mth time. Can someone give me advice on how to get to know him or talk to him etc? I've tried to go up and bump into him again many times but was unsuccessful. I've no experience in wooing a guy at all! If a guy starts to talk to you etc, does it means that I stand a chance to befriend with him and get his contact after that?