Off the top of your head

Pro Tip 1/3

Not Prepared

Use when you haven't had time to plan or rehearse your answer.

I haven't reviewed the report, but off the top of my head, the sales numbers are up.

Pro Tip 2/3

Informal Context

Better suited for casual conversation, not for formal or serious situations.

Off the top of my head, I'd say let's meet at the usual café.

Pro Tip 3/3

Honesty Implication

Conveys a sense of honesty since the response isn't carefully crafted.

Just off the top of my head, I think this design looks more appealing.