You can check out the latest exhibits together and have lots to discuss after you leave. Museums and art galleries also often hold special events like lectures, film screenings, and musical performances that you could go to with your friends. If you need a new outfit or just feel like shopping invite a friend or two to join you. If you don’t want to spend any money, go window shopping. Walk around, look at the displays in the shop windows, talk, and have fun! Brainstorm a story, write a script, gather props, and film your movie. You can try to do it in one shot or get pro and edit all of your footage together. Then, you can have even more fun when you watch the movie together. You can go out to your favorite restaurant, or eat in if you're short on money or not wanting to be in public. It'll give you a chance to chat with your friends while you eat or cook.  If you're going out, make sure it's a place both you and your friends enjoy and that everyone can afford it. Having the meal at your house can save money and can be great fun. Invite your friends over and have a glass of wine while you're cooking or, even better, have a potluck and have all your friends bring their favorite dishes! It's fun when all the servers know you by name and your drink and it can be a great way to just relax and have a quiet chat with your friends. Pick a time every week, or every month to meet. Try having everyone who can make it meet every first Friday of the month, for example and catch up on everything that's happening in your lives. Having it specifically scheduled means more of your friends will be able to make it. Looking for cheap treasures at yard sales can be a ton of fun with a friend or a few friends. Watch your local newspaper for yard sale announcements during the summer months or just drive around and look for signs.

TL;DR in Vietnamese:
Cùng bạn bè tham quan viện bảo tàng địa phương. Cùng nhau đến trung tâm mua sắm. Cùng nhau thực hiện một bộ phim. Đi ăn trưa hoặc ăn tối cùng nhau. Hẹn gặp bạn bè tại tiệm cà phê hoặc quán rượu yêu thích của bạn. Mua sắm tại khu chợ “lạc-xoong”.