AND I HAD EYE CONTACT WITH HIM! I think I had a blank face on. I nodded a little to him and then he went off in a very cheerful mood! He went "FOOOO~!" similar to what Hard Gay do before he board the ferry.
I couldn't judge how long we looked at each other! Time seem to freeze for me! According to Liping, the whole glancing thing lasted for at least 10 seconds.
From Liping's POV: "Then he moved through a gap and before he turned and board the boat, HE LIFTED UP HIS HEAD AND LOOKED AT US. He glanced at the 5 of us, and I think I had a little eye contact with him as well, though not as long as Liyin, whom he really looked at. "
So both Sho & Keiko board the ferry and they go round and round the Singapore river for filming. During breaks, Sho will wave to us. I think overall he waved 5 times to us? Sometimes he will jump a little, just like a kid while holding umbrella