A true interest?

"Dude, I wanna drink some of your beer!"

"You mean, like, beer I bought or beer I made?"

"Haha, beer you made."

"Do you like stouts?"

"Yeah, I had Guinness Extra Stout the other day. It was awesome."

"Well, mine's like ten times better than that. I normally don't say that. And stupid question anyways, cause it's not a stout. It's a porter. A coffee porter. You'll like it"

Finally, I think someone may have more than a feigning interest in my beer. Feigning interest is exactly what friends are for. Although he's a friend, he may be genuinely interested. I wasn't even talking about beer when he brought it up.