PLEASE READ BELOW INSTRUCTIONS: Bob will ask you which sign do you want to choose. Answer him back with your chosen sign in letter form. Example if you want add then say, add. (Do not say another synonym it won't work). He will also say which number, say a number from 0-9. If you want to restart and get a new number or you said something that is like wrong e.g. plus, click the green flag.
I want to say thank you for playing and hope this would be useful for you.