Train:
While he was still tired from looking after the wounded, Ichigo wasn't done yet. There had been far too many wounded to keep everyone in medical, so he was trying to keep track of them all. If you were wounded, feel free to have an encounter with him.

Locked to Grimmjow:
After having been to luggage, and stopping in laundry for some of the dried catnip, Ichigo went to find Grimmjow. He wanted to give the man the books he'd gotten, and see if the herb would have any effect. "Hey, Grimmjow, I've got a few things for you."