Hi Aatos,
We actually have an example of what it will be like after resurrection and that would be Jesus Christ.
We know about the Scripture where Thomas would not even believe Christ was risen without seeing Him for himself. Jesus appeared after His resurrection and showed that He was able to manifest in physical form and He looked real and they could touch Him and feel that He was real.
John 20:24 Now Thomas, called the Twin, one of the twelve, was not with them when Jesus came.
v. 25 The other disciples therefore said to him, "We have seen the Lord."
So he said to them, "Unless I see in His hands the print of the nails, and put my finger into the print of the nails, and put my hand into His side, I will not believe."
v. 26 And after eight days His disciples were again inside, and Thomas with them. Jesus came, the doors being shut, and stood in the midst, and said, "Peace to you!"
v. 27 Then He said to Thomas, "Reach your finger here, and look at My hands; and reach your hand here, and put it into My side. Do not be unbelieving, but believing."
v. 28 And Thomas answered and said to Him, "My Lord and my God!"
v. 29 Jesus said to him, "Thomas, because you have seen Me, you have believed. Blessed are those who have not seen and yet have believed."
Here is Scripture where Jesus also appeared to His disciples and they saw exactly what He was like or at least that He could come in physical form if He desired to. He even ate some food to show that He was really in a natural physical form and not a vision or just spirit.
Luke 24:36 Now as they said these things, Jesus Himself stood in the midst of them, and said to them, "Peace to you."
v. 37 But they were terrified and frightened, and supposed they had seen a spirit.
v. 38 And He said to them, "Why are you troubled? And why do doubts arise in your hearts?
v. 39 Behold My hands and My feet, that it is I Myself. Handle Me and see, for a spirit does not have flesh and bones as you see I have."
v. 40 When He had said this, He showed them His hands and His feet.
v. 41 But while they still did not believe for joy, and marveled, He said to them, "Have you any food here?"
v. 42 So they gave Him a piece of a broiled fish and some honeycomb.
v. 43 And He took it and ate in their presence.
Now we can assume that those in the first resurrection will be able to do as Jesus Christ, because Scripture says that "we shall be like Him."
1John 3:2 Beloved, now we are children of God; and it has not yet been revealed what we shall be, but we know that when He is revealed, we shall be like Him, for we shall see Him as He is.
mercy, peace and love
Kat