ToolStrip items/buttons in windows form app

Question

 Hi

In my windows form app, I have a toolStrip where it has 3items.

If I click on any one of them, I need to repeat that (click again) so that the item/button will be activated and start working.

I read that my application needs to be activated first so the first click will be to activate the form, the second click will be to  activate the item/button in the toolStrip.

So, what shall I do to make each button on the toolStip works when it clicked from the first time