1. That gun might look small and insignificant, but it could be a molecular scrambler capable of exploding your cells with one blast.
2. That snarl could mean many things. Anger. Lust. Howdi. The point is until you've learned their body language, it's best to avoid an interaction.
3. She's wearing a diamond necklace with keys. Yes, keys. So those keys might unlock many things - the ancient scrolls of Oopa or the treasures of Atlantis. Either way, she's not letting you get either the keys or those diamonds.
4. Those tattoos might be meaningful. For all you know, it means she's part of an ancient Assassin's Guild that indicates their allegiance using unique symbolism.
5. What's she standing in front of? Looks sort of like a safe. Hey, what a minute... maybe that's what the keys are for. Better back off before she thinks you want inside the thing. Just sayin...