It should go without saying that the lector would always read from a bound lectionary. Every symbol we use at Mass should be worthy and dignified. It should not look temporary or disposable. So no paperback lectionaries, workbooks, missallettes, or looseleaf papers. Always read from a worthy book.
Hand gestures are tricky to pull off.
The first thing to ask is why a lector would want to add in a gesture. Too often, a gesture is simply distracting. It can call attention to itself and to the lector and not really help the proclamation. But on occasion, used sparingly and well, a simple gesture can emphasize the most important point of the reading and add an important element to the proclamation. Here are some general guidelines for adding gesture.