A big welcome to the forum from a fellow brit.
You may be an expert on this sort of thing so please forgive me if the following suggestions seem a bit obvious.
Have to admit that we spend very little time in camp during the daylight ~ it’s a long way from London to Kruger!
For birds in camp look out for water, could be a pond, sprinkler, bird-bath or even a dish put out strategically near your hut. [Don't think this constitutes feeding!!!]
Use your ears, just as you would looking for birds anywhere. Evan if you are not familiar with SA birds, after a while you will become used to the normal background whistle, cheep and twitter and will notice anything unusual.
Spend most of your time moving slowly or even better, standing/sitting still.
If your SO decides to have a daytime shower, it’s the perfect time for an explore, try walking round the fence, respecting others privacy of course!
Mopani has some brilliant places, try round the back of the pool and round to the restaurant.
If you are lucky a dwarf mongoose or five may pay you a visit if your sitting quietly at your “hut” during the day, or if your unlucky baboons! Secure your fridge and food!
At night honey-badgers strut round camps like Satara and genets at Berg-en-dal and Punda Maria. Most camps have Owls that call at night and can be found if you are skilful/lucky enough to find them.
Look where you are treading when walking off the path in the day and always use a torch at night, puff adders for example, are incredibly beautiful but almost invisible off the paths.
Never go anywhere without your camera even a crowded shop or restaurant, many great opportunities happen around busy places.
Have a great time and expect the unexpected!
Punda has a great hide overlooking a damp bit of the bush.