Here are several ways to prompt someone to take a picture, ranging from casual to formal:
Casual:
- "Hey, snap a pic!"
- "Quick, take a picture!"
- "Let's get a photo!"
- "Picture time!"
- "Grab a shot of this!"
- "Can you take a picture?"
- "Would you mind taking a picture for me?"
More Formal:
- "Could you please take a photograph?"
- "I would be grateful if you could take a picture."
- "Would you be so kind as to take a picture of [subject]?"
Specific Instructions:
- "Take a picture of me with [landmark/person/object]."
- "Take a few pictures, please. I want to get some good ones."
- "Can you take a picture of this from a different angle?"
- "Could you take a portrait-style picture, please?" (or landscape-style)
The best option will depend on your relationship with the person and the context of the situation.