You can check out the full ALF Season 1 Guide on IMDb to see where this episode falls in the Shumway saga. ALF Reviews: "Keepin' the Faith" (Season 1, Episode 5)
The highlight of the episode is ALF’s attempt to host a sales party. There’s something inherently hilarious about a puppet with three-fingered hands trying to pitch beauty products to neighborhood women. It’s the peak of 80s "fish-out-of-water" comedy—or as some critics point out, a "waterless fish" since ALF seems to adapt to human consumerism a little too well. Why It Still Works [S1E5] Keepin' the Faith
Here is a blog post written from a retro-pop culture perspective: Can an Alien Sell Cosmetics? Revisiting "Keepin' the Faith" You can check out the full ALF Season