Self improvement

I have found an area of self-improvement for myself.
I don’t drink, but I have friends who do. Because of a party, my fridge is full of beer. Hopefully it will get drunk at the next party I have.
Last week, a friend said to me, “I don’t think you have enough beer in your fridge.” His wife told him not to encourage me. At the time I was heading towards a stash of beer that wasn’t in the fridge to go put it in, until he said “[eallen] can recognize sarcasm.”
I can. I often employ it myself. But I also act dumb and pretend I don’t. This may be funny a couple of times, but it is no way to live.
I should never purposely act stupid. I know I do, and it is something to work on. But it’s such a broad area that it is hard to really tackle it. But if I can focus on stopping the I-don’t-recognize-sarcasm habit, I think I’ll be able to make headway.
Hopefully my friends will point out if I start backsliding.