C#

public override event EventHandler MouseEnter;

public class Human : UserControl
 {
     public Human()
     {
         Paint += new PaintEventHandler(Human_Paint);
     }

     void Human_Paint(object sender, PaintEventArgs e)
     {
         e.Graphics.DrawString(Name, new Font("Arial", 9), new SolidBrush(Color.Black), Location.X - 5, Location.Y - 15);
         e.Graphics.FillRectangle(new SolidBrush(Color.Red), new Rectangle(Location.X, Location.Y, 20, 20));
     }
 }

private bool isIn = false;
public string Name { get; set; }

public Human()
    {
    InitializeComponent();
    Name = "A name";
    }

private void Human_MouseEnter(object sender, EventArgs e)
    {
    isIn = true;
    Invalidate();
    }

private void Human_MouseLeave(object sender, EventArgs e)
    {
    isIn = false;
    Invalidate();
    }

private void Human_Paint(object sender, PaintEventArgs e)
    {
    Graphics g = e.Graphics;
    Rectangle rect = e.ClipRectangle;
    rect.Inflate(-1, -1);
    g.DrawRectangle(Pens.Red, rect);
    if (isIn)
        {
        g.DrawString(Name, Font, Brushes.Black, new Point(10, 10));
        }
    }

//Class
    public class Human
    {
        private string _Name = "none";
        public string Name { get { return _Name; } set { _Name = value; } }
        public Point Location { get; set; }
        public Size Size { get; set; }

        public void Paint(Graphics g)
        {
            g.DrawString(Name, new Font("Arial", 9), new SolidBrush(Color.Black), Location.X, Location.Y - 15);
            g.FillRectangle(new SolidBrush(Color.Red), new Rectangle(Location.X, Location.Y, Size.Width, Size.Height));
        }

        public bool Contains(Point point)
        {
            if (point.X >= Location.X & point.X <= Location.X + Size.Width &
                 point.Y >= Location.Y & point.Y <= Location.Y + Size.Height)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

    }

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            DoubleBuffered = true; //from the Invalidate() in MouseMove
//i wish i didnt use DoubleBuffered, but it does its job for the moment. 
            female.Name = "Alina";
            female.Location = new Point(20, 20);
            female.Size = new Size(30, 30);

           //female.MouseEnter += new EventHandler(female_MouseEnter);
        }

        Human female = new Human();
        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            female.Paint(e.Graphics);
        }

        private void Form1_MouseMove(object sender, MouseEventArgs e)
        {
            if (female.Contains(e.Location))
            {
                female.Name = "Gaga";
            }
            else
            {
                female.Name = "Alina";
            }
            Invalidate();
        }

    }