you go to the love heart icon in the top row, on the very right. press confirm and if your friend has a v1 go to ver1, if they have a v2 just pick ver2. if you want to play a game both of you press game or if you want a present choose present. Keep on presing the middle button when it says stand by and you want a present.
you should really read your instruction booklet (its supposed to be for V2, but u can tell by the games that bandai didnt change it much
1. anyway go to the 5th icon, the one with the heart press on it and press on the one that its gonna connect with
2. before u press the heart though make the 2 tamas touching(the red bit at the end touching the other red bit on the end)
3. then press if u want game or present
4. then it should say stand by.
5. press the middle buttonand they should say connect...in a while it should stop saying that and 1 or both tamas should fly off to have a game or to goto the other tamas tamagotchi