Friendly Stick Figure Character with Baseball Cap

Faithfully refine the stick figure in the reference image. Keep the same character identity: navy blue baseball cap with a sideways brim, round white face, tiny black dot eyes, simple expressive eyebrows and a friendly smile, yellow short-sleeved T-shirt with a small teal rectangular chest detail, long thin black LINE arms and legs, small black hands and shoes. Preserve the references exact simplicity and proportions. Arms and legs must remain single black strokes. The T-shirt is the only substantial body shape. Add personality through a slight head tilt, lively facial expression and a confident conversational gesture. Carefully balance the cap silhouette, face, shirt and limbs for a charming, recognizable recurring educational host. Clean slightly organic black outlines, flat navy blue and golden yellow colors, white face, plain white background. One large full-body character, centered, with one hand open in a welcoming explanatory gesture and the other resting on the hip. Closely match the reference.