A selection statement, commonly referred to as an IF statement, lets you decision between one or more outcomes, or results.
Two outcomes means you are trying to choose between ACTION #1 and ACTION #2.
if <condition> then
// do something because the condition is TRUE
put "The condition was true"
else
// do something because the condition is FALSE
put "The condition was false"
end if
You may also wish to consider a decision with only one outcome, or a decision with multiple outcomes.