Spend time in groups with other friends or family. Allow things to develop slowly. It is vital to set appropriate boundaries for intimacy to avoid pain and hurt on both sides. Physical attraction is a very powerful thing, so be prepared to reset your boundaries in the light of experience. We like to set ourselves rules, but then break them in a instant.
Many people like to think that sex is only full sexual intercourse.
But there are so many things that people can do to one another, which mean that you are having a sex life. A sex life should be reserved for marriage. Bear in mind that you might not end up married to this person. If you don't marry them, then you have had a sex life with someone else's husband or wife. When going out with someone, remember that you are looking to God's standards as revealed in the Bible, not comparing yourselves to other couples around you.