Short Answer 
To effectively communicate with locals in unfamiliar areas, utilize the Pointee-Talkee for conveying messages through symbols, and employ signaling devices like flares and whistles to attract attention. Other tools, such as camouflage and Blood Chits, do not facilitate direct contact with the local population.
Step 1: Utilize Pointee-Talkee
The Pointee-Talkee is an essential communication device designed to facilitate interaction with the local population. It works by using symbols and illustrations to convey messages, helping you bridge language barriers effectively. This aids in establishing contact and receiving assistance in unfamiliar areas.
Step 2: Employ Signaling Devices
Signaling devices act as tools to grab the attention of nearby individuals when you need to make contact. These can include items such as flares, whistles, and mirrors that create noticeable signals. By using these devices, you can increase your visibility and improve your chances of being noticed by locals who may offer help.
Step 3: Understand the Limitations of Other Aids
While there are other tools such as camouflage and Blood Chit, they do not directly assist in making contact with the local population. Camouflage helps you blend into your environment, but it doesn’t facilitate communication. Similarly, a Blood Chit provides identification but does not ensure interaction with locals. Focus on Pointee-Talkee and signaling devices for effective outreach.