ammo will give you increased confidence as noted from many users, also it makes some feel a bit uneasy and self critical as i seemed to notice upon a couple initial tests. So if you have problems opening up to people i would suggest you look at instant openness as well as it is classified as the ice breaker of mones and will relax you and those around you. You should find that conversations will flow easier and it will alleviate your approach anxiety when talking with new people. Instant shine has proven to me time and time again that it slightly boosts my confidence and makes me more witty, outgoing and social and at the same time makes you happier and those around you are in a better smiley mood. They tend to attribute that feeling to you making them feel that way.
Ammo in either edition has the same molecules and ingredients in it, the only difference is the smell of the scent of it. regular is more of a laundry detergent type soap smell and world is more flowery and potpourri type floral scent.
Kino is the type of flirting and touching. Basically you may also want to read up on some indicators women send out as showing they are interested in you like flipping their hair, biting their lip, positioning their body towards you, heck ill provide you with a link thats valuable 
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you should be able to pick up on this individuals attraction and test the water to see if there is more than just friendly attraction.