Get data from a cell with DataGridViewCell.ToolTipText

I have the following form which has a notes column, raise the CellFormatting event to add a ToolTipTex

That is, when I pass the mouse over the cell, it shows me the content in a ToolTip

The following image shows that when I pass the mouse over the cell that has the * it shows me the message Hello World in the tooltip

Code

private voidDataGridView1_CellFormatting(objectsender,DataGridViewCellFormattingEventArs e)
{
    if ((e.ColumnIndex == this.dataGridView1.Columns["Notas"].Index)
        && e.Value != null)
            {
                DataGridViewCell cell =
           this.dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];
                if (e.Value.Equals("*"))
                {
                    cell.ToolTipText = "Hola Mundo";
                }
            }
        }

How can I make it show me the content of the cell? In the code it says that if there is a * in the cell, show hello world, but what I need is to show me the content whatever the user enters, that is to say if the user enters hello how are you show me the same