Such a neat little game! If you did not state it was your first game, I never would have realized!
Lovely attention to detail with the scenery changing according to the time of day, people passing by in the background, items changing appearances... simply amazing!
The sound effects make it feel so cozy, and the music helps everything come together nicely. The art complements the whole thing, and the game loop is completely sound.
I honestly love this game. It has such good vibes and is really enjoyable.
Generic question, not a complaint, but I am curious: why is it so tiny? :D
Only some minor bugs happened to me. I only write them down, because you said you intend on expanding the game, and I am hoping to help you by listing what I found.
The mouse controls (for me, at least) kept changing. Sometimes I could only do certain actions with the left mouse button, and some only with the right - then it flipped to the opposite. I guess some switch is stuck?
Maybe this is related to the issue stated above: overlapping interactables behave weirdly sometimes. Examples: putting coffee beans in the machine if a cup is already in there, or throwing things in the bin, or brewing a new cup of coffee as a guest is leaving.
If the coffee machine is empty, it produces a sound effect. At some point in the game that sound effect disappeared for me.