Summarize this article:

Friendships can blossom with a series of one-on-one interactions. It can be fun to go out in a big group now and again; this can also be a way to meet people and make friends. However, try to have one-on-one time with people you really click with. This can help a strong friendship develop.  If you meet someone you click with in a big group, reach out to them. Invite them out to dinner or for a drink. The two of you can spend some time chatting and getting to know one another more in depth. Keeping the first one-on-one encounter brief can help keep the potential friend interested and feeling positive about the future of the friendship. Push beyond small talk. Bonds tend to form when people feel vulnerable. As you start to get close to someone, confess some deeper information. Talk about your secrets, insecurities, dreams, and more. Sharing sensitive information with someone can strengthen a bond.  Laugh at yourself! Find something you did that day or something about yourself that you can poke fun at — this is generally endearing to people. However, make sure not to share sensitive information with someone until you're sure you can trust them. If you want to build a strong friendship, communication is important. Make an effort to talk to your friend as often as possible.  If you met your friend at a club or meeting, chat that friend up each time you get a chance. Sit next to your new friend in meetings so you can talk before and after meetings. Text when you can. It's easy to have strong, interesting conversations via text. Friendship builds over time, and small gestures can go a long way towards keeping a friendship strong. Pick up your friend's favorite treat if they've had a bad day. Buy your friend a drink at the bar. Send your friend a text if you see something that reminds you of them while you're out on the town. Slowly, you will begin to form a stronger bond. Propose a road trip. The two of you can go out of town for the day to a spa or out for a hike. A road trip, even a short one, can give you time to bond. New experiences help foster strong friendships. If there's something the two of you have always wanted to do, try it together. For example, take a trip to a mountain range you've always wanted to hike together. Be patient. It takes around six to eight meaningful interactions before you will really feel like you're friends with someone. You cannot force friendship to take place overnight. Allow your friendship to develop at its own pace.

Summary:
Strive for one-on-one time. Don't be afraid to get personal. Communicate regularly. Do little things to keep the friendship strong. Take trips together. Give it time.