If two dwarves wrapped in a trenchcoat tried to sneak into a human camp, what would give them away?
The most likely thing that would give away two dwarves disguised in a trenchcoat as a single person would be their height and walking pattern, as they would both be shorter and have a distinct gait compared to an average human. Additionally, their body shape, speech, and mannerisms may also reveal their true identity.
How might they mitigate these issues?
To mitigate the issues that could give two dwarves away when disguised as humans, they might consider the following:

    Height difference: They could wear shoes with thicker soles or use a prosthetic device to add height to their appearance.

    Physical features: They could shave their beards or use makeup to conceal distinctive features.

    Behavior: They could observe human mannerisms and practice mimicking them in order to blend in better.

    Voice: They could work on changing their accent or tone of voice to better match that of humans.

    Proportions: They could wear well-fitted clothing that hides their different proportions, or use padding to create a more human-like silhouette.

It is important to note that the success of these methods will depend on the specific situation and the skills and resources available to the dwarves.