Have something to offer.

Some people want your perspective. Some people want your ear. Some just want your presence. Figure out what you want, and pay attention to what others want. Finding the right match is when you end up having a great time.

Consider the medium you use for interaction and find a balance. My theory is that many people feel lonely nowadays because they overuse certain mediums for communication - the internet. It's not bad, but just doing something outside or in real life can make all the difference.