What direction should I extend my menu?

I am just making a website and don't know which direction I should extend my menu for best user experience and most intuitive feel.

The buttons to open the menu are in the top, right corner. I have to decide wether to extend the menu to the left or to the right of the button.

To the right

To the left.

The extension to the left looks better for me. It's more comfortable to move the cursor into the webpage.