Use `list.append(item)` to add one item to the end of a list
Example: `my_list.append(4)`
Use `list.extend(iterable)` to add multiple items to the end of a list
Example: `my_list.extend([4, 5, 6])`
Use `list.insert(index, item)` to add an item at a specific position
Example: `my_list.insert(0, 1)`
Use `+=` to concatenate another list
Example: `my_list += [4, 5]`
Use slicing to append items at the end
Example: `my_list[len(my_list):] = [4, 5]`