Look to shoot a mix of wide establishing shots, medium and closeup shots. Think about reverse-angles and try not to just shoot the people in your party from behind of the side; get ahead of them and shoot them coming towards the camera. Keep an eye out for very tiny things that could be shot in extreme closeup, that set a mood or hint at an activity or location, something…iconic, like a hand-made crafted object in a market, that stands in for the marketplace as a whole. Tiny creatures, unfamiliar bugs and beasties. Trucks and Cars you don’t have back home. Details of motorcycles and bikes. Aspects oh houses and businesses, parks and gardens and temples. Contrasting the tiny scene-setters against the wider shots will look great and help tell a story. Biggest mistakes amateurs make include “tromboning” zooms: (constantly zooming in and out) or panning too much and too fast. Use tripods or a monopod or any handy flat surface to place a camera, frame a shot, then LEAVE IT ALONE for at least ten seconds, preferably a minute. Where the sounds are unique, roll a long time on a time-lapse-like shot, to capture that audio. Think in terms of story: you need establishing shots to tell the beginning, action from various angles for the middle, and something for the end that sums up or wraps up the story.
Pack a tiny “gorilla pod” mini tripod that can attach to many surfaces for one of the go pros. Have a hiking stick or umbrella or cane fitted with a mounting screw, maybe several, to act as a monopod, where tripods are too much. The monopod/hiking stick could also hold a gopro at arm’s length so you can take video POV “‘selfies” with you in the shots as well.
Recruit one helper to shoot with a separate go pro/video camera from the opposite side of your group to get more b-roll and cut-away/reversal shots. And then you’ll be in more of the footage as well.
Not all great shots happen at eye level: think about occasionally shooting from very low angles or high ones, looking down on action from above.
Look up and use the Rule Of Thirds in composing your shots. Not every shot needs to be framed dead-center.
Play with rack-focus shots, changing the point of focus from near object to distant background, and back again.
Shoot some sky/clouds/stars/sunsets/rises/moon. Also waves, trees in wind, traffic. These are mood setters and connecting link footage.
No raw shot should be shorter than six seconds. Count out six seconds before you make a camera move like a pan or zoom, then count another six to ten seconds when the move stops, and just keep running in the framed shot a bit longer.
Don’t forget to put the gear aside sometimes, be present in the moment and just enjoy the trip from time to time, and don’t spend every minute on the job as cameraman, hoping you can catch up what you didn’t experience by playing it back later.