Although some of this involves some planning in advance, including applying, you can meet people with similar interests to your own. Contact your school about job opportunities. Look in the classifieds section of your local newspaper. Or, contact places where you are interested in working to see if they are hiring for summer help, such as at restaurants, bars, or accommodations at vacation spots or resort areas, for example. Some destinations and tour companies offer special packages just for singles, who can sometimes request being placed in a group with similarly-aged people.
Vacation packages exclusively for gay men and lesbians are also available.
All of these trips can be as active as walking, biking, or hiking tours, or as relaxing as an island getaway. Not only can you meet and mingle with new people, but also enjoy a change of scene. Don't pass up an opportunity to go out with friends or go to a summer party. Weddings and commitment ceremonies also provide chances to meet new people. Concentrate on meeting new people, maintaining the friendships you have now, having fun, and doing what you want to do.