The thing to remember about gesture, whether you're using it as a verb or a noun, is that not only is it a movement of the hands or body, but it's also a movement that has some meaning, intention, or emotion behind it.
Contract review. The purpose of contract review to ensure that customer requirements are understood & company is capable of meeting customer requirements.
Also, reference the sections in the contract that addresses inspection and acceptance. 5.6 Invoice Review Discuss the plan or process (e.g. instructions, certifications, documentation, etc.) for reviewing and approving invoices; and reference the invoice requirements addressed in the contract.