Memes

Here are a few options for a response to the tweet "gm" (good morning) that meet the requirements:

1. "Hope you're having a great start to the day!"
2. "Morning vibes only! What's on your agenda today?"
3. "Good morning! Wishing you a day filled with positivity and productivity"
4. "Rise and shine! What's the plan for today?"
5. "Morning sunshine! Hope your day is as bright as your smile"

These responses are all under 200 characters, neutral, and use friendly and uplifting language. They also don't require any specific knowledge or context, so you can use them as a general response. If you're unsure how to respond, you can always fall back on a simple greeting like "Good morning!" or "Have a great day!"