How to differentiate the right side and wrong side in crochet

Sometimes, a pattern calls for you to turn your work after every round. While it’s seemingly easy enough not to forget if you’ve turned or not, the situation becomes a little less clear when it’s time for you to pick up your work again after you’ve put in on hold for a while. This occurs in particular when it’s time to add the sleeves on a circular yoke or raglan sweater which is worked in turned rounds.