Please provide a screenshot of the whole UTAU window. You can alternatively make a screen recording to demonstrate what you're trying to do and any audio issues you may be having.
Press the little tilde to the left of the horizontal scrollbar to activate pitch markings. If you still don't see anything, select the notes then click right, go to Pitch and enable Portamento.
Press the little tilde to the left of the horizontal scrollbar to activate pitch markings. If you still don't see anything, select the notes then click right, go to Pitch and enable Portamento.