To get started you obviously need a grill! Some will argue that a charcoal grill is better than a gas grill, or vice versa, but this is completely up to you and what is readily available. Then you need to decide what you want to eat! Grilling is just like any other art; in order to get better you have to try some new things out. Try some weird recipes online, add some herbs and spices, it can be as basic or complex as you’d like.
Some easy things to grill are steak, chicken, burgers, and hot dogs among other things. These are good foods to start with if you are new to grilling. If you are just starting, well done will probably be the way to go until you get better at judging the meat’s readiness.
Some other things you can grill are vegetables, buns (just for a bit to get a crunchy toasty bun), and even some desserts. I have come across recipes online for grilled banana smores and grilled banana splits.