Let's Pretend

For some time I have known of a way to make 'pretend to' type sentences using ふり:

知らないふりをする。
Pretend not to know.

I've learnt another similar type of phrase which is used for saying things like 'pretend not to have seen/heard':

見なかったことにする。
Pretend not to have seen.

聞かなかったことにする。
Pretend not to have heard.

Oh yes, and Happy Valentine's Day!! Are my days of receiving hand made chocolates and biscuits over?　(>_<)

[As always, feel free to correct any mistakes you see.]