Some emoji are misunderstood because the picture suggests one thing while common usage suggests another. 🙏 Folded hands can mean prayer, thanks, please or a high five depending on context.
Other emoji are misunderstood because internet slang changes their meaning. 💀 Skull often means laughter or shock, not literal death. 😭 Loudly crying face can mean intense crying or laughing hard.
Subtle face emoji can also be tricky. 🙂 Slightly smiling face may be sincere, awkward, dry or passive-aggressive. 👀 Eyes can mean watching, curiosity, suspicion or "look at this."
The safest reading comes from the whole sentence, the person sending it and the place it appears. For more examples, see emoji meanings by context.