If you want to get serious about it and they have a Pro at the club spend the money for at least one lesson with him it will be money well spent and get you off on the right foot with fewer bad habits developed along the way. If not ask one of the better shooters if he will give you some clues.
Get a book or one of those charts that shows you where to position yourself for each station. There really is a proper place to have that barrel pointed for each of the five stations. It's been so long since I shot trap I'm not sure I can properly remember them each. My shoulder just will not take the recoil of a 12 gage so it's been a long time since I shot.
In generall your most difficult stations are one and five as the angles there are the most acute and unforgiving. At station one your toughest shot will be one angling sharply to the left and at five it's just the opposite as the one sharply to the right is the most acute angle and longest lead. The center station is the easiest of them with the in between 2 and 4 stations in between in difficulty to one, three and five.
Since your toughest angles are the outside going targets at stations one and five you want to prepare yourself for them in advance. Set up to break them if they come out and if they don't any other is more simple to break. If you're set up for any other and they come out is tough to make the adjustment and break them.
What I think I recall I did was to point the barrel some where about midway between the left corner of house and center for station one and midway between right corner and center of house for station five. I think tho I recall most experts recommend pointing still further outside on both. For the middle three stations I just point it over the middle of the house. Most recommend having the barrel three feet or so I think above the house so you'll be about where you can first see the target appear. For me that was too high as it was blocked by the barrel and actually delayed me getting on the target.
Start at the 16 yard line and stay there until you're breaking them good before backing up. If you go into competition and you're likely to want to since you like to compete then your scores will determine you handicap yardage. I used to like the 27 yard line and didn't find it so tough as that's where we mostly shot our competitions from. We shot for money and it got us to the end so we could do it again sooner back there.
We once played a game where we backed up 37 yards from the house and stood at what would be station three directly in line with the house. We shot a five shot game high score won all money or if a tie you shot it off from there miss and out. Darn few five of fives were shot and I shot most of them with a load of 1-1/8 oz of 8s moving at 1550 fps with the entire shot charge inside a 1-1/4 oz shot cup.
If you develop any specific questions I'll try to address them.
