Hiya Mark - Welcome to Pherotalk.
If you have a read of this thread:
https://pheromonetalk.com/t/how-do-i-qualify-for-a-25-gift-certificate/19934
And give us a bit more info, you will earn a GC and give us the sort of info that will help us offer better advice. 
In the meantime, the start of this thread has links to all the basic info on choosing, using and evaluating pheros - Digest it well and you won’t go far wrong:
Or, if you want to plunge straight-in, I’ll suggest that Ammo and Instant Shine are a good way to start:
Ammo is a balanced social/sexy/masculine formula that will mark you out in any situation, without coming-off as overly horny but still worthy of interest. It also provides a healthy confidence boost.
Instant Shine gives a happy and good to be around impression to folk around you and also has certain mood-lifting qualitues for yourself.
Both of these can (and should) be used singly to begin with but when you have found your feet, apply them together for one of the classic and most popular phero mixes out there! 
And remember - Pheros are fun, so enjoy yourself!