I did it a little differently, without rushing too much either. But I did it in this order:
- Go to the beach, talk to the waitress as little as possible and when you pick up the bottle from the sand, choose the option to keep it
- Go to the store, buy the drink (then, since you have two drinks, choose the best one to serve)
- Go to the church with your friend and advance through the part where you meet the young nun, and then accept your friend's idea to go investigate, with this we will discover things about the plot and also the oil for the massage that will come in handy
- Since I had already talked to the girl on the boat before, this location was not marked for me to go to, but going back to the store, there was sushi and I bought it there too
- Go to our house, get the cassette and CDs from your aunt's room and DO NOT hide when you hear her coming
After this, go to the town hall and the "picnic" scene will appear.