If you have a role card, try to get into the role, it will make your experience much more fun.
Riot is correct. Us old guys get sneaky.
You will be tempted to long ball....fight that urge. Experienced players will judge your range and ignore you. Manuver to get up close and personal.
Play honest, you only cheat yourself in the long run.
Avoid the pitfall of complaining about how the other side is "wiping". Yes it happens and always will. Chances are that your side is doing it too. Just remember, you played good money to have fun. The game is what you make of it. Stay positive!