Noises often scare animals unnecessarily. Notice how many more varieties of wildlife you see and hear, and how many types of plants you can observe. Avoid using animal attraction devices. When taking photographs do not encroach on wildlife. Relentlessly following and harassing animals in search of the ultimate photo is unacceptable.
Different animals require different non-encroachment distances.
If in doubt of these distances ask the local warden specialist. If you want to smoke in natural areas take your butts with you. Leave no trace of your visit, dispose of all trash properly. Try to minimize the amount of disposable products you take with you on vacation. Reduce, Reuse and Recycle.