The placement was duly made, several years after the first formal contact.

"A single ship, a formal first contact, that sort of thing."

I don't see the harm in allowing these aliens to make formal contact with our world.

It was an introduction card, of the type used to make formal contact.

They had decided not to make formal contact, but to simply observe the humans.

They touched hands, a formal contact of two fingers quickly withdrawn.

But you are to limit yourself to formal contacts with the local government.

Such systems provide no information about the large number of illnesses that resolve without formal contact with the medical system.

"There has been no formal contact for over two hundred years," she admitted.

However, this was merely a first informal contact, and we need further formal contacts.