You have already received good advice here, so I am not going to rewrite what has been said. I would add however two products when you are with your date.
P95 - A social putative which makes girls giggle a lot. It is better to move forward one they are in a good mood. I accidentally tried it the other way round once… did not work. 
IH - For building rapport and makes you more trustworthy. IH would also benefit you when persuading people. 
Just don’t use it for malign purposes.
P83 - Has already been mentioned, but this one is a must have when you are with your date.
You can combine those three with most of the products here.