Discussing your past relationships on a first date is a straight NO!
If you have to check your phone every 5 minutes, just skip the date and don't waste someone else's time and effort.
Women do not appreciate such things and consider this as a red flag on a date.
Don't add a swear word at the end of every conversation to sound cool.
Men, if you have something to attend to before your date make sure you inform or postpone.
Bragging or complaining about your salary is a complete NO!
Constantly checking your appearance every now and then is a big turn-off.
Do not cross this fine line between chivalry and creepiness men.
Do not take your date to a loud place where you both can barely hear each other while talking.
Do not interrupt your date when they are speaking.