This is how I got it:
shift 1: choose to refuse the weird customer your number so BB help you out of the situation - watch TV before going to bed
shift 2: don't reply to Lane's messages - take an umbrella before going out (after getting your name tag and taking a bath, return to the bedroom. There will be a pile of clutter on the left side of screen("FALLEN ITEMS"), including an umbrella. After clicking it twice, the text will inform you "its raining outside so you decide to grab the umbrella" -- In the conversation that begins after walking into the alley with BB, select "ASK IF HE TALKS TO NO ONE. EVER" and the subsequent "WAIT FOR HIM TO SAY". This scene can be seen in the subsequent plot.
Hope it's helpful to you:3