In a conflict environment, the guerrilla may still have to continue living and operating within society and conduct himself as a regular civilian at times. This is simply part of being a guerrilla, it's part of what differentiates a guerrilla from your basic battlefield combatant. It's the ability to not just "blend in", but to be a part of that society and environment. With that said, the guerilla always needs to be thinking ahead, even when, especially when, he is functioning "normally" in his day-to-day civilian living routine. Part of that is always being keen to picking up intelligence and information useful to the guerrilla's cause. People you meet will sometimes have that information, and you'll need to know how to spot those people and further, how to assess whether or not they are useful as a source.