It's difficult to tell because those coins are very low grade. The first top left is late Roman Imperial maybe Constantine II with soldiers and standards reverse. The second coin is Greek but I can't pin it down. Bottom row left, I don't know. Bottom right, I think this coin might be from the India region, maybe Kushan because of the legend script.
I don't know anyone right now but maybe someone here will take them. I think the Greek coin might marginally be the best coin in the lot.
Hopefully a new collector will take them. I was given a coin too when I first started collecting. I think it's a good idea. This is my first coin given to me by Bing 3 1/2 years ago. Augustus, Macedon, Philippi, AE 19mm (Semis). 31 AD, 4.7g, 19mm OBV: VIC - AVG, Victory standing left on base holding wreath and palm. REV: COHOR PRAE PHIL, Three standards in honor of the Praetorian Guard's battle between Augustus and Marcus Antonius. REF: RPC I 1651, SGICV 32, SNG Cop 305, BMC 23, SNG ANS 677
The one on the top right looks like a Hieron III Poseidon coin. The rest are a bit too worn, but the bottom right one still looks identifiable.
Cleaning ain't going to help these coins much. Some don't need any cleaning like the Greek top right, maybe Hieron II as icerain suggested.
Bottom left is a bronze of Arados in Phoenicia. The bottom left is also from the Phoenica area, judging by the inscription.
