This thread is funny.
Showing a girl pictures of your mace collection.
Showing her MMA knock outs.
Wearing a suit
Buying her expensive chocolates
Blowing up at her for not liking you.
... you should have just gone to coffee with her. One hour tops, wear smart casual clothes, look and smell fresh. Talk about her little project and then build some rapport, ask her questions to set up a second date.
“Oh you like Italian food? I know this place near my house, we should totally go there some day!”
Get a second date, share a decanter of wine, after dinner, “hey, if you’ve got the time, would you like to have a cup of tea back at mine?” ...
THEN, you show her your mace collection!