forgot how to insert a space in a variable

I forgot how to insert a space in a variable. The code below displays two database variables side by side, like "FirstNameLastName" How can I insert a space so it displays "FirstName LastName"?

$Name = $FirstName.$LastName;

 

$Name = "$FirstName $LastName";

The above option is also there but the better one is already told by Shabbir.

 

simple, simple haha