1-Keep eyes out of the picture
Do your best not to mention past loves. This is a quick way to dampen the passion and possibly dig up some insecurities and resentment. You must not talk about exes unless the general topic comes up, and even then don’t talk negatively about an ex. There is a big difference between talking about who you’ve dated or the last time you dated and badmouthing the person or complaining about how bad it was. What impression do you think this leaves the other person?