You can say “Я хочу поцеловать тебя” (“Ya hochu potselovat’ tebya”) in Russian instead of “I want to kiss you”. In the Old Russian language the verb “tselovat” was used in some meanings. Originally the old Russian verb “tselovat’” meant “to wish smb be healthy” and “to greet” and then “to kiss”. You kiss smb in view of the tradition as a sign of friendship, while greeting or saying goodbye. This word appeared in the old Russian language at the turn of the 18-19th centuries.