You do not always have the privilege to have full input into your venue/environment but be aware of the ideal environment. Perhaps you can make minor changes, even if you cannot select or change the entire setting.
There are several types of places where you may find yourself giving a presentation. You may not find the environment perfect, but try to look for the most appropriate under the circumstances:
Producing effective training aids is only half the battle. You also must use them effectively.
If you are projecting directly off a laptop onto a screen, ensure you know how to get your laptop to project when connected to the specific equipment at the venue. Also know how to go backwards and how to omit slides from the presentation but not from the file itself.
You will have to decide the most opportune time to give them out – before, during or after your presentation. Remember that people will examine them and go through them when they receive them, so don’t keep talking at that time.