I would like to separate the approach thing into two parts, by separating approach to two parts we can give it a meaning and can perceive it with a better meaning. Invitational Approach Not Invitational Approach They both have their own meaning, and can used for different things.

Invitational Approach This approach type is when opposite sex give us more than 1 IOI, she is basically inviting us to approach her. IOI can be, subtle eyes gazes, her body or feet pointing to us, catching her checking us out while we are looking elsewhere. IOI can be many things but the point is, this is a woman's way to initiate first. If you can point out her invitation to approach you will get successful. This kind of thing can be used if you don't want to practice and get to know a potential woman which you can spend your night with, this type can be used in night clubs, or other venues like bar or cafe etc.

Not Invitational Approach May used mainly if you want to gain experience about seduction, just practicing. This approach type means, not waiting a woman to initiate first/send signal, but you initiating first. Just approaching and playing the numbers game. This kind of approach is used mostly in day game, where we approach many woman in a day for practicing purposes or trying to number/kiss/etc. close.