Pick a genre. There are several types of game "genres," including first or third person shooters, RPGs (role playing games), TBG (turn based games) puzzle, fighting, action adventure, racing, sports, etc. This is a small list. Again, spend a lot of time researching the different genres to decide what you like. If you like a lot of fast paced action that will keep you on your toes, try shooters or action games. If you'd rather sit back, relax, and let a long story unfold, try RPGs. A lot of people are already familiar with the puzzle genre; Bejeweled and Zuma are just two of the many puzzle games. you may also like more then just one genre
Buy games for your console. You should buy two or three when getting the console. Of course, you can just buy one, but it's nice to have a few different games to switch out, in case you get bored or stuck or mad at one game. If you buy used games, you can get two or three more games than the price of a brand new game. Also, try picking out different genres.
Read the instruction manual of the game. People who have been gaming for a while can skip this step if they want. However, if you're new to gaming, it's best to read the instruction manual ALL THE WAY. A lot of things will be tIf the game has a tutorial, and you haven't played many games before, make sure you start there. If the game has several difficulty settings, start at the lowest. You can always ratchet up the difficulty later if you think it's too easy.
Practice. The more you play video games, the more you will instinctively know in other games. Fighting games, or any multiplayer games, you should practice a lot by yourself. Get used to the controls before playing against someone else.
Walk away if you get frustrated. Very often you will play the same level, or the same scenario, and you'll just be stuck. You'll lose over and over again. You'll convince yourself it's impossible. There might be profanity. Walk away, take a break and come back to the game later.
When playing online or with friends, be respectful. Don't curse or use profanity, or insult other players. In addition to be inappropriate, you could be banned from playing online or have negative marks on your profile.
Play with friends. It's can be more enjoyable than just playing alone. If they are a gamer, they also can teach you techniques.