Exchange ideas.
アイディアを出し合おう。
Exchanging ideas with others always helps us think further. It also gives us a leap of the imagination and help us create something new.
Thanks to the Internet, we can easily connect with the people who have interesting thoughts. It would be a waste not to take advantage of that.
But be cautious; not everybody is able to exchange ideas with others. Some people are just busy proving themselves right and others wrong, although they may seem to be willing to have a conversation with others—in fact they are just looking for their victim. Stay away from them.