faster.rb

responses = ["hi", "hey", "hello"]
lines = ["hi there", "whats up man", "how is it going?"]

# Method 1
lines.each do |line|
  responses.each to |response|
    return true if /#{response}/ =~ line
  end
end

# Method 2
return true if responses.any?{ |response| lines.include?(response) }