First, You have to use your languague skills and to be easy to communicate. The communicativity is highly rewarded by Estonians. You can experience the warmth of thankfulnes from Your Estonian partner of communication. Estonian language is quite special, it belongs to Finno-Ugric family of languages like Hungarian and Finnish. It has some structural similarities with exotic languages like Dravidian, Polynesian or some North American Indian languages.
Estonian language is likly rich in different vowels.
It's quite exciting task to try to learn up all of them. Actually the evaluation of communicativity has been reached for Estonians also beyond the limits of men - it's normal to talk to the pets, domestic animals, even to the plants, stones and dead in graveyards. Second, by using the mind one has to be respectful for the circumstances. You had to have respect both for the room, where You are and for the person You communicate with. Therefore, by Estonians, it's considered to be very unlucky to shake hands over the door - it marks the lack of respect for both room and person You communicate with.