Possible feelings:
* Amused observation: Maugham was a keen observer of human nature, known for his sharp wit and social commentary. He might find the interactions and conversations at a luncheon party amusing, even if he didn't fully engage.
* Mild cynicism: He often displayed a cynical view of society, particularly the upper classes. He might find the luncheon party superficial or lacking in genuine connection.
* Professional detachment: As a writer, he might see the event as a source of material, observing people and situations for potential use in his stories.
* Discomfort with small talk: Maugham was known for his introspective nature and preference for deep conversations. He might find the forced pleasantries and shallow discussions at a luncheon party tiresome.
* Boredom: If the conversation was dull or the company uninspiring, he might be bored and yearn for something more stimulating.
* Appreciation of good food and company: While not always outwardly affectionate, Maugham could appreciate good food and company. If the luncheon party was well-organized and the guests interesting, he might enjoy it.
Ultimately, his feelings would depend on the specific circumstances:
* The host: If it was a close friend or someone he admired, he might be more engaged and relaxed.
* The other guests: If the company was intelligent and stimulating, he might be more inclined to participate and enjoy the event.
* The topic of conversation: If the discussion was interesting and meaningful, he might be more engaged.
In conclusion: Maugham's feelings at a luncheon party are a matter of speculation. It's likely he would experience a range of emotions, from amusement and observation to boredom and cynicism, depending on the specific event and the people involved.