去逛街吧。

Add 吧 at the end to make it a suggestion. Without 吧, it sounds like a command or a statement of fact. You can say it to one person or a group. It is very flexible. If you want to be specific, you can add a location. For example, 去三里屯逛街吧 (Let's go shopping in Sanlitun). It works perfectly as a standalone text message. It is the verbal equivalent of a 'let's hang out' shrug.

Use this when you are bored on a Saturday. Use it when a friend needs a mood boost. It is perfect for a first or second date. It feels active but allows for plenty of talking. In a city like Shanghai or Beijing, this is a daily activity. You can use it after a meal to 'digest' the food. It is the standard way to transition from 'sitting' to 'doing.'

Do not use this for serious grocery shopping. If you need eggs and milk, use 去买东西. Do not use this with your CEO. It is too casual for a professional setting. Avoid using it if you are in a huge rush. 逛 implies you have time to kill. If you use it while sprinting to a store, people will be confused. Also, do not use it if you are literally hiking in the woods. That is 去爬山.

In China, 'strolling the streets' is a major pastime. Malls are not just stores; they are social hubs. They have cinemas, arcades, and incredible food courts. For many, 逛街 is a way to see and be seen. It is a form of 'window shopping' culture called 只逛不买 (just strolling, not buying). It became huge as urban centers modernized. It represents the rise of the Chinese middle-class lifestyle. It is as much about the neon lights as the shopping bags.

If you are tired, you might say 不想逛了 (don't want to stroll anymore). If you are a shopaholic, you are a 逛街狂. You might hear 走，逛街去 which is a more proactive, 'let's go' version. Young people often just say 去逛逛 to keep it even more vague. If you are specifically looking for clothes, you might say 去买衣服. But 逛街 remains the king of general social outings.