Hi Kay!

Of course I can help give some advice! I also come from a sales background and I do understand that the sense of being "annoying" can irritate people, but what I found out it's how you structure the conversation that can make a difference! Here are some tips that I fund very useful when making a engaging conversation:

-Start an unrelated conversation starter to get the person engaged! Some topics would be: Food, Video Games, How is their day, etc. Make the person feel heard and valued! It's more about listening to them and start building that relationship!
-After a starting conversation, have a smooth transition! For example, it can be something as "Wow I really love what you said about, XYZ, and it really resonates with me. With that being said, I actually finished a TTRPG game that I have done on my free time! Would you like to hear more about it?"
-Most of the times they will say yes after you have built that conversation starter and you listen to them! When describing the game, provide a summary of the game! If they say no or object to it, it's okay! Sales people get told no's too!  It's like saying show the big picture! From my experience, people don't really care how it is made, they are more interested on how it can help them find solutions! In your case of video games, you can paint a picture by expressing the exciting content of the game! You want the person to feel excited about the main things of what to expect! Make the game sound exciting not boring!
-Overall I would say my formula to make it easier:
Starter Conversation + Active Listening + Transition to talk about the game + Talk about how exciting it is! + Let the person speak/give feedback + Answer questions if needed + Close it up = Great conversation!
**It's also how you set the tone/energy too! If you are excited, they will feel that energy too! 

I hope this helps Kay!

And I will try New England Clams! I will tell you how it tastes! Now I gotta find a place that serves it lol.