I loosen my tie and study my shoes.

But he got his sums badly wrong and the winner burst clear without having to loosen his tie.

He had his own rules; drink in half-pints so it appears you are consuming less; never loosen your tie; always hide the empties under the table.

In this case the advantage had given him the freedom to riff a little, to loosen his tie and exhibit his skill, and he took the chance to do so.

He would often loosen his tie before he ever started speaking, and by the end of his speech have thrown off his vest and coat.