Advice Needed!

Hi,

I've bought L2K v.1 and Certo and I'd like to ask for some advice about using them and maybe which one would be the best to use for a specific situation.

In a few weeks I will be meeting my ex girlfriend again and I get the impression she is showing interest in me again. Which one would I be best using form the above mentioned for the best results, as in I'm interested also in her but I'd like to make this meeting the icing on the cake.

thanks