Help a maid of honor!!

Hey ladies!

My truest friend of 17 years is getting married on Saturday and I'm her maid of honor..naturally, I have to give a speech, but I don't feel like I know her soon to be husband very well..there whole 5 year relationship they have lived 8 hours away and I've only met him a couple times. Traditionally I think you are suppose to say something about the groom but I have no idea what to say!! Can anyone give me ideas or tips?! I need all the help I can get 😫