Briefly can someone explain what Deuteronomy 6:7 means from The Bible?
Impress them on your children. Talk about them when you sit at home and when you walk along the road, when you lie down and when you get up.
As always it is vitally important to analyse such a verse in the context of its original pasage and the book as a whole rather than just trying to guess at a meaning from the verse itself. If we have a look at the Book of Deuteronomy, we can see that one of its principal themes is the way in which the people of Israel have received God's laws and how they are supposed to live as a result. The verse you have quoted actually comes from the Shema, which is Hebrew for "hear" and has become the Jewish confession of faith, recited daily by fervent Jews. Let us remember what verse 6 says:
These commandments that I give you today are to be upon your hearts.
What comes after this verse is a development of the process of ensuring that God's commands are "upon the hearts" of his people. The verse you have cited is part of this process, and involves making sure that the children of the Jews are brought up realising the importance of these commandments and how they should follow them as well. These commandments should be the topic of conversation in one's household with your family but also as you travel to ensure that they are fully understood and their importance is remembered.