3. French
The French language is also called the World’s language of love. French sounds very different. But this is the first impression. Try and see a French text and you will probably understand many of the words even if you have never studied the tongue before. The fact is that the French language contains plenty of internationally known words deriving from Latin (which also influenced English, Spanish and Italian). It is not the easiest language, though. For example, French pronunciation is rather difficult. Some letters are silent and not pronounced which is not typical of Spanish or Italian.
4. Portuguese
Portuguese is gaining popularity. More and more people are willing to speak the language. To ask a question one should simply use intonation alike English where you are supposed to use auxiliary verbs. It won’t take you ages to master Portuguese.