Olympus om10 things to know?

Just picked this up for about $20 today! Haven’t done any research into this camera model but this one seems to be in good condition. I have not tested it yet, seeing as it needs a battery. I am relatively new to film photography, and usually just shoot with my little point and shoot, but I understand the basics of using an SLR camera. That being said, is there anything specific I should know before shooting with this model?