Develop new interests, that help you progress in life. They need not necessarily be dancing, acting or adventure sports or something to make you popular.
Even an interest in shares, insurance, foreign languages, cooking, or whatever takes your fancy still gives you the chance to meet new and interesting people. Work hard on learning a lot about your interest - in other words, don't just go through the motions, but be genuinely interested, and it will take you a long way. You get knowledge, that you can share with friends when they need to know something, and you develop your people skills through varied interactions.
Getting interested in new things helps by developing your personality in multiple dimensions, and increases your range of conversation subjects, where you have interesting things to share.