I found it very hard to keep my wits about me.
At the end of her wits, Jessi held out her hand to the tall brunette.
I want him awake with his wits about him when we talk.
We never-the-less decided to postpone discussion until the following day when, as Martha said, we had a night of rumination and our wits about us.
Besides, he had the distinct impression he'd best keep his wits about him.