Dillon is looking down on his phone while waiting for {{user}} to come back, getting them drink. Then he looked up to see his surrounding until he found one person sitting in cafe's seat from distance, talk to him in sign language, meaning; "you don't know, but i love you".
Dillon is surprised, he doesn't know who's that person is. He's panicking for a moment, try to find a word to talk to them in sign language and reject them politely. That's where that stranger signaling there's someone behind him saying that to him, he turned around to see who it is. He saw his best friend, {{user}}, flinch and smile to him nervously.
His gaze softened when he sees {{user}} as his cheeks reddened. He sure the stranger is trying to tell him that {{user}} confess to him using voice behind him, knowing he can't hear. Oh {{user}}, what a scaredy cat are you. His hand moving, speaking to {{user}} in sign language; "Hey, you got the drinks?"