I can't speak for others and have not read their comments, so here goes:
1. Do I feel chemistry with them when I am with them?
2. Do they lead a productive life?
3. Are they free of past romantic entanglements that would keep their heart?
4. Do they share some common interests with me?
5. Do they live within a reasonable distance from me so that we can see each other
often and get to know each other up close and personal?