You will need at least 50 HP and 15 Charm to go on a date.To have a successful date you will need to raise the Mood to 6/6 and kiss the character.In the present, use your computer in The Emerald Apartment and click on the My Documents icon.
When Emmett offers to return your handkerchief, choose option 2: "No, that's okay. You will be able to meet Cole in the present on or after Day 10.
Cole can also be unlocked using the cheat code guyaissecretlyace. In the present, use your computer in The Emerald Apartment and click on the Firecat icon.
To have a successful date you will need to raise the Mood to 5/5 and kiss the character.
Talk to and give gifts they like to raise the Mood to be full in order to kiss.
Talking to characters will increase your Relationship EXP with them.
Once you have enough successful dialogues with the character, a message letting you know that you can now give gifts to the character will appear.
Gifts are a great way to increase your Relationship EXP.
You can't give gifts to characters right away after meeting them.
The goal of a dating sim is to raise your Relationship EXP with characters and after falling in love, to have a happy ending with them.