Joining a fraternity involves the development of total brotherhood, involvement with dozens of other men who share your common interests. Don't let that future be influenced by just one individual. If he's such a close friend, he'll still be there when you join the other house. Every Greek has friends in other chapters and acquaintances. Don't make rush a package deal.
Most chapters vote members in bases on a vote of approval.
One or two members usually can't get you in. So even if you're a really cool guy, if you've only met a few guys in the house, you may not get the bid. So meet as many guys as you can. And don't hesitate to ask the guys to introduce you around. Be assertive and act confident.