Ok here are my findings so far. Flower petals can be put in Jays coffee before 11am to increase lust, hug Jay and eat with her to increase lust. Wine can be gifted to any of the girls for +10 lust. Trust has 2 forms "town trust" (not implemented yet idk) and individual trust, ask Jay for a "task" (throw away trash) and you'll get trust and money for each time completed.
I have not figured out how to farm, if you know how please let me know