Set a session length
Start with how much uninterrupted time you normally have. Check how a game saves, how long it takes to reach a stopping point and whether a session can be paused. A game can be excellent and still fit poorly into a short evening.
Choose the kind of attention
Decide whether you want to learn complex systems, follow a story or spend time with familiar mechanics. Trailers show presentation; written descriptions and recent player discussions can help you investigate the pace and demands. Treat subjective claims as opinions, not guarantees.
Check practical requirements
Read the current store listing for supported platforms, system requirements, accessibility information and controller support. Verify language availability and whether internet access is required. Requirements can differ by edition and platform.
Keep a short list
Choose two or three candidates rather than an endless backlog. Write down what attracts you to each and what might prevent you from enjoying it. If a demo is available, it can answer practical questions before a purchase.