Thomas
When you get super passionate about something makes him crazy. You love what you do and being super passionate is a rare thing.
Patton
You opening up more to him. He thinks that's the hottest thing ever, but he would use different wording.
Logan
When you do a silly romantic gesture like buying him flowers or chocolate.
Roman
Your focused face usually on makes him crazy. He's to embarrassed to do anything though.
Virgil
Putting you hand on his thigh usually does the trick. Also whispering in his ear drives him crazy. He finds simplicity a turn on so that a plus.
