When creating an If...Then statement, how do I make more than one if?

For example

If TextBox5.Text = "1" OR "2" Then
Do something
End If

I need to make it so it will work if the textbox has 1 or 2. For right now, I can only get it for one number, or I will get an error that says the number 2 cannot be converted to boolean.

Thanks for your help.