What is the OR operator in an IF statement

Question

In C#, how do I specify OR:

if(this OR that) {do the other thing}

I couldn\'t find it in the help.

Update:

Answer 1

The reason this is wrong:

if (title == "User greeting" || "User name") {do stuff};

is because what that's saying is

If title equals the string "User greeting"

or just "User name" (not if title equals the string "User name"). The part after your or would be like writing

if ("User name")

which c# doesn't know what to do with. It can't figure out how to get a boolean out of "User name"