.upcase every other array item RoR

First post.

The code below works, sorting my answers alphabetically, but I am having a hard time adding a conditional to my program.

I believe I need to include an if/else statement so that every other answer is in caps.

ie: names = ["Bob", "Joe", "Bill", "Fred"] desired output =

BILL

bob

FRED

joe

The code:

names = []

4.times do puts "Please enter your amigo's names:" names << gets.chomp end

SortNames = names.sort

SortNames.each do |name| puts "There once was a person named " + name + "."

end

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Thank you very much for your help!!