When talking to a friend, it's usually more relaxed and casual. You can joke around and use slang, which makes the conversation feel easy and fun. But when you're talking to a stranger, you tend to be more formal and polite. You might feel a bit nervous or cautious because you don't know them well, so you try to make a good impression.

With friends, you can talk about personal stuff and feelings because you know each other well. You often share experiences and memories, which makes the conversation deeper. But with strangers, you usually stick to general topics like the weather or current events. The conversation is more surface-level because you don't have that shared history.

You're more likely to share secrets or personal stories with friends because you trust them. Friends are usually understanding and supportive, so you feel comfortable opening up. With strangers, you tend to hold back personal information because trust hasn't been established yet. It takes time to build that level of trust with someone you don't know well.

Talking to friends is often just for fun and to strengthen your bond. You might seek advice or support from them because they know you well. But when talking to strangers, the interaction might have a specific purpose, like networking or getting information. You're more focused on achieving a particular goal rather than just enjoying the conversation.