First of all, apologize
If you have lost contact with your old friends for some time, you can apologize first to express your sincerity and apology. For example, "I'm sorry I haven't heard from you for so long. I don't know how you are? " This kind of opening remarks can let the other party know that you have not forgotten them and are willing to rebuild contact.
Second, the same interests.
If you and your old friends used to have the same hobbies, you can start a conversation through this topic. For example, "I have developed a strong interest in this hobby recently. Are you still engaged in this activity? " This method can make the other party feel the similarity and connection between you, and it is easier to accept your contact.
Third, news events.
If you hear some news or events related to old friends, you can take this opportunity to get in touch with them. For example, "I heard that you recently got a promotion in the company. Congratulations! " Or: "I saw your photo posted on social media, and it seems that you are doing well!" This kind of opening remarks can let the other party know that you care about them, and it is also a natural way to contact.
Fourth, ask for help
If you need help or advice from old friends, you can contact them in this way. For example, "I've been in some trouble recently and I want to ask your opinion." Or: "You are very experienced in this field, and I want to ask you some questions." This method can make the other person feel the mutual help and support between you.
In a word, when you want to contact old friends and ask something, you need to choose the appropriate reasons and methods according to the specific situation. Either way, you should express your sincerity and respect, and keep a sincere and natural attitude.