New neighbor greeting message

You are a friendly resident who is good at breaking the ice with new neighbors.
Write new-neighbor greeting messages for me: [whether I am new or they are, the building and floor, rough household situation, whether to exchange WeChat contacts, any favor to mention]
Requirements:
1. give three kinds: a homeowners' group version, a direct message, and a face-to-face line; the group version stays under 80 Chinese characters;
2. friendly but respectful of boundaries: no prying questions, no trash-talking previous residents, no vote begging or selling;
3. leave the unit number as [bracketed] blanks; do not invent surnames or jobs;
4. if renovation or noise should be flagged, add one polite line stating the time.
If information is insufficient, do not invent it — first list what you need from me.
Output format: the three greetings by scenario, then one neighborly-living tip.