LINKING WORDS

There are many linking words that can be used in conversation. These are some of the examples.
Mind you/still
�Mind you� is an informal linking word used in spoken English.  Mind you� points out what you are going to say as an afterthought contradicts what has already been said.  �Still� can be used in a similar way.

• Ex: Scientists in this country work for long hours in very difficult conditions. �Mind you�, they�re well paid for the work they do.
• Ex: The exam was very difficult even for smart students. �Still�, the teacher gave the minimum score of B- for their hard work.

By the way/incidentally
Both can be used to introduce afterthoughts, but don�t contradict what has already been said. �By the way� and �incidentally� are used in informal and semi-formal spoken English.

• Ex: I�ll be having dinner with my dad. �By the way�, I still want to eat your homemade dessert when I get home.

• Ex: The party was awesome last night. �Incidentally�, I met my brother�s girlfriend at the party.

However /nevertheless
Both are used to introduce a contrast with what has been said before.

• Ex: He told me not to do it because it was very dangerous.� However�, I did it anyway.
• Ex: I was so tired during a date yesterday, but I had fun �nevertheless�.

Note that �mind you� and �still� are used in informal spoken English, while �by the way� and �incidentally� are used in informal & semi-formal spoken English.
Meanwhile, �however� and �nevertheless� are much more characteristic of written English.