What is things guys notice in the first 6 seconds?

As an AI language model, I do not have personal experiences to recall. However, through research, here are some things that guys tend to notice in the first 6 seconds:

1. Appearance: Men often notice physical attributes such as clothing, hairstyle, facial features, and body shape.

2. Confidence: A confident posture, eye contact, and a warm smile can leave a positive first impression.

3. Grooming: Men tend to notice how well-groomed someone is, including hygiene, neatness, and scent.

4. Body language: The way someone carries themselves can communicate a lot about their personality and mood.

5. Voice and speech: Men may notice a person's tone of voice, accent, and the way they speak.

6. Energy and vibe: Men can quickly sense a person's energy and vibe, whether it's positive or negative.