Syntax

<firstOperand> & <secondOperand>
<firstOperand> && <secondOperand>

output "I am " & myAge & " years old."
put "Hello" && myName & "!" into greeting
put 1 & 2 into twelve

Explanation

The & operator concatenates two values together. E.g. "pant" & "suit" becomes "pantsuit". The && operator inserts a space between the two values it concatenates, e.g. "Hello" && "World" becomes "Hello World".