May God bless us all in Jesus' mighty name! In our focal scripture, the Psalmist presented "wonders" as an identity that God has. He said, "Thou art God that doest wonders".
Furthermore, in describing God's wonder-working acts, the Psalmist used the word, "doest", which is a present-continuous tense of the word, "do". This shows that God continues doing wonders at all times, has never stopped, will never stop, and never plans to stop. Also, notice that the Psalmist didn't say, "Thou art A God", but said, "Thou art THE God".
This equally shows that no other person or deity does wonders except God. He is unrivaled in miracle-working and can never be matched by anyone. The most important part of that scripture, however, is found in the (b) part which says, "thou hast declared thy strength among the people".
God doesn't do wonders just for fun, every wonder is a declaration of His strength among the people. It didn't say among HIS people but among THE people; this means that whether to His people or to people that follow after idols or to anyone, provided they are people, God uses His wonders to declare/express His power to them. God can show a wonder anywhere at any time provided there are witnesses, and He never does wonders without witnesses.
The word, "among" in that verse shows that these wonders can only be seen when more than a person is present, and the essence of this is for more than a person to come to the point of being able to attest to His power. you've probably come to a point where your desired visitation has become public knowledge. You might have a situation that everyone is aware of, it could be the need for a breakthrough, the need to have a child, the need to get a job, or the need to be delivered. The fact that many people have come to know that you have this need shows that your situation has qualified to attract a WONDER for you.
This qualification is a sequel to the fact that by reason of the many observers, there would equally be many witnesses when God does something tangible.