When playing Tristana you need to make sure you are making the right choices for your team. This includes being cautious and avoiding certain dangers you can put yourself into. Here we go...

Nice early game burst
Massive late game range
Counters heals with her Explosive Shot

Pushes lane unintentionally with Explosive Shot passive
Easily saves enemy champion with poorly used ultimate
Commmonly weak Mid-game if not fed properly or doesn't cs well

While in the early game as Tristana you need to be a little more creatie than other champions when trying to CS. Your passive from your E (explosive shot) has an AoE of damage you need to pay attention to. Try not to deny your own CS with this, rememeber... PRACTICE PRACTICE PRACTICE!!!!

Your role as the ADC is to deal consistent damage. I stress this a lot, stay in the back and hit who ever you can reach safely without taking damage. Take into account out of position enemies as you can pick these off easily late game with your massive range. If need be use your ultimate as an escape for your team as it will knock enemies back quite a bit, and yes I said enemies your ulimate will knock back anybordy in the radius of the direct shot (will be shown while aiming if smart-cast is disabled).

Flash and Ignite are very comon in the ADC guides and most people find it appropriate with Tristana. You may also want to take others like Barrier or Cleanse instead of Ignite but that is all I would swap out because she has little CC to help her self by kiting and poking as easily as Ashe does with her Q that slows per auto attack. She is also very easily locked down by CC and killed.

Thank you for checking out my guide and I hope you enjoyed it. Please leave your comments in the discussion section and have fun.