This link should help, especially the explanation of what an "ante" is.
Student or Learner
What does "ante" mean in these sentences?
1) Whether we fail to understand our enemy or refuse to see his ante and raise him is irrelevant at this point.
2) A prospective intern appears at my office door wearing a micro-skirt displaying bronzed legs, her pretty face framed in a blunt, platinum coif."Don't you look fabulous," I say in my best motherly voice, whereupon she sees my ante and raises me several chips of self-awareness.
"Oh, thanks, I'm a big fan of Paris Hilton."
"Ante" and "raise" are references to poker and similar gambling games. An "ante" is an amount of money necessary to participate in the hand and a "raise" is an increase in the bet. Metaphorically, an "ante" is something you put forth to another and a "raise" is a response to his/her reaction.
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