Formal:
* Montrez-moi quelque chose. (Show me something.) This is the most direct and formal way to say it.
* Pouvez-vous me montrer quelque chose ? (Can you show me something?) This is a polite way to ask someone to show you something.
Informal:
* Montre-moi quelque chose. (Show me something.) This is a more casual way to say it.
* Tu peux me montrer quelque chose ? (Can you show me something?) This is a more informal way to ask someone to show you something.
Specific:
* Montrez-moi [noun]. (Show me [noun].) For example, "Montrez-moi votre passeport." (Show me your passport.)
* Pouvez-vous me montrer comment [verb]? (Can you show me how to [verb]?) For example, "Pouvez-vous me montrer comment faire du vélo?" (Can you show me how to ride a bike?)
You can also use different expressions depending on the situation, like:
* Fais-moi voir. (Show me.)
* Laisse-moi voir. (Let me see.)
* Je veux voir. (I want to see.)
Remember to adjust the formality level based on who you're talking to and the context of the conversation.