Similes focusing on warmth and kindness:
* As warm as a summer breeze: This emphasizes the comforting and welcoming nature of friendliness.
* As gentle as a lamb: This conveys a sense of gentleness and non-threatening presence.
* As sweet as honey: This implies a pleasant and alluring quality.
Similes focusing on approachability and openness:
* As open as a book: This highlights the willingness to connect and share.
* As welcoming as a beacon: This suggests a friendly presence that draws others in.
* As easygoing as a summer day: This emphasizes a relaxed and unassuming demeanor.
Similes focusing on connection and rapport:
* As comfortable as an old shoe: This implies a familiar and easygoing connection.
* As smooth as silk: This conveys a harmonious and effortless interaction.
* As natural as breathing: This emphasizes a sense of effortless connection and understanding.
You can also use a more figurative simile, such as:
* As inviting as a blooming garden: This suggests a welcoming and vibrant presence.
* As comforting as a familiar melody: This conveys a sense of comfort and ease.
Ultimately, the best simile for "friendly" will depend on the specific context and the nuance you want to emphasize.