Here are some more appropriate ways to express missing your friends in Chinese:
* 想你了 (xiǎng nǐ le): This is a more casual way of saying "I miss you" and is suitable for friends.
* 好久不见 (hǎo jiǔ bù jiàn): This means "Long time no see" and is a friendly way to acknowledge that you haven't seen your friend in a while.
* 最近怎么样 (zuì jìn zěn me yàng): This means "How are you doing lately?" and is a good way to start a conversation and show that you care about your friend.
* 一起吃饭吧 (yī qǐ chī fàn ba): This means "Let's eat together" and is a great way to suggest getting together with your friend.
Ultimately, the best way to express your feelings depends on your relationship with your friend and the specific situation.