The symbol for OR is '||'
if( someRandomVariable == true || somethingElse == true || insaneRageMode == true )
// do stuff
if () { // Put a condition in ().
// If the condition is true then whatever is in here will happen.
} else if () { // Put a different condition in ().
// If the if else condition is true then whatever is in here will happen.
} else { // If it doesn't equal any of the conditions.
// If both conditions are false then this will happen.
}