Honestly I think it is best to read their profile and come up with an opening message that relates to what you see on their profile. For example, if someone has a lot of travel pics on their profile and they say they love to travel. Then you could say, "That's great you love to travel! What big trips are you going on this year?". Just don't be too generic because you're probably not the only one messaging them so you want your message to stand out.
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Your neurodiverse (Aspie) score: 123 of 200
Your neurotypical (non-autistic) score: 98 of 200
You seem to have both neurodiverse and neurotypical traits
"Plant your hope with good seeds,
Don't cover yourself with thistle and weeds"