What I tell people of similar situation is The only time you need to wear your glasses is when you want to see better.
Now if the glasses don't help for the up close, take them off. But only take them off for when you're doing stuff up close for a really long time, like reading a book, or crocheting a duck, or making out.
Once you take them off, now you have two choices: you can be a delight and return them to your case or you can be more of a saucy sort and use them as a prop. Feel free to gesticulate subtly with your glasses. Point with them, rotate in circles when coming to a point. You might even want to plop one of the temple ends into your mouth when you strike a pensive pose. It's all up to you.
Glasses are a great tool, whether wearing them for better eyesight or impressing others with an impression of brilliance. They are useful even when they're not.