1. Are you free... [Saturday night?] 2. Are you doing anything... [Saturday night?] 3. Let me check my calendar. 4. (informal) Do you wanna... [see a movie?] 5. (formal) Would you like to... [join me for dinner?] 6. I'd love to! 7. Sounds great! 8. I'd love to, but I have another commitment. 9. I don't think I can. 10. Maybe another time.
Finally, it s important to keep the passwords of the accounts that you access different from each other and, of course, secure. That way, should one account be compromised by some stroke of misfortune, the hackers won t automatically gain access to your other accounts that they may then learn of.