It depends on the context of the message and your relationship with the person! Here are some general responses you can use:
Friendly Catch-up:
- "Hey! It's been a while, how are you doing?"
- "Wow, it feels like forever! What have you been up to?"
- "Long time no talk! How's everything going?"
If You're Surprised:
- "Whoa, I haven't heard from you in ages! What's up?"
- "Didn't expect to hear from you! How are things?"
- "It's been a while! What brings you back to me?"
If You Want to Keep it Short:
- "Hey, good to hear from you!"
- "Just saw your message, what's up?"
- "Long time no see!"
If You're Interested in Connecting More:
- "It would be great to catch up sometime! Are you free for a call?"
- "We should definitely hang out soon. How about [suggest activity]?"
- "Let's chat more! What's your number?"
If You're Not Interested in Connecting:
- "Hey, I'm doing well! Thanks for reaching out." (This is a polite way to end the conversation)
- "It's nice to hear from you, but I'm not really looking to reconnect right now."
Remember to be genuine and tailor your response to the specific situation.