I was a grill newbie myself not long ago…You have much to learn, grasshopper- but I’m happy to impart my new knowledge. 
OK, enough BS.
For steak/burgers:
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Start grill and pre-heat it for about 7 minutes (I do this on high with the lid closed. I’m sure someone around here will say it will explode or something…it won’t)
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Turn heat down to low or medium. You are cooking with the heat of the coals, not the flame of the grill. Put on steaks or burgers.
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Open a beer, drink it. By the time you’re done with it, your steak or burgers will be ready to turn (about 5 minutes). Flip 'em!
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Open another beer, drink it. When done, check your meat (use a meat thermometer to be safe) when it is cooked to your liking, it’s done!
Chicken- Soooo easy and GOOD!!
You can marinate the chicken first if you want- don’t have to
1.- wrap chicken breasts (bone in) tightly in foil.
2.- preheat grill as mentioned above.
3.- This time, put the chicken on the top rack of your grill (if it has one). If not, make sure the grill is on low and put it on the regular rack.
4- drink a six pack- these need to cook about 25 minutes.
5- unwrap your chicken and cook about 8-10 minutes more on the grill (on low). This will brown the skin- Yummy! Baste with Bar-B-Q sauce or chicken marinade sauce if you wish. If you marinaded your chicken before cooking, be sure to use FRESH marinade when basting. If you use the same marinade as before, you could have problems with salmonella.
I have become a grill pro, so e-mail me if you want any more advice. Remember, times here are approximate. Always check for doneness with a meat thermometer, or (for chicken) wait until the juices run clear when pierced. (I usually cut the biggest piece right through the thickest part to check- makes me feel better)
A friend is someone who likes you even though you’re as ugly as a hat full of assholes.
Zettecity