He scowled, then his natural good humour reasserted itself.

All the time I talked," he laughed as his naturally good humor reasserted itself, "I could see them asking themselves: What foah we do ahl dis?

Nkosi grinned, his usual good humor reasserting itself.

Oh, well -his good humour reasserted itself at least we can tell em where the Hudson ditched.

Then his good humor reasserted itself.

Then his natural good humor reasserted itself, and he considered his own actions ruefully.

At that point her humor briefly reasserted itself.