Second, ask the people you're with if they know the girl you're interested in and, if they do, ask to be introduced (if she's single and has a good rep).
It's less awkward being introduced then introducing yourself.
Healthy relationships can provide meaning, enoyment, fulfillment and a host of other extremely positive and worthwhile experiences to enrich one's life.
Second to that rule is to dress appropriately for the occasion.
Another important verse comes from the apostle Peter: "Likewise, ye husbands, dwell with them according to knowledge, giving honour unto the wife, as unto the weaker vessel, and as being heirs together of the grace of life; that your prayers be not hindered" (1 Peter 3:7).
These passages, though written for husbands, can also be read as dating advice for men who aspire to be godly husbands.
You don't want a girl that is rude to others and you don't want a girl who is taken so you didn't loose anything!
Before launching into the specifics about the intricacies and various idiosyncrasies of relationships (let alone how to get involved in one), it would first be helpful to understand what exactly a healthy relationship is. What areas of the relationship should I focus on improving?