Normally, Abdul cannot be recruited in Aswan, as he's still recovering from the previous fight with Geb. However, if you talk to him with one of the above Stands in the party, you can heal him and bring him along with you. You'll also get +1FP.
At the hotel, you can buy Fruit Baskets from the counter. If you bring these to the hospital, you can give them to Kakyoin and Abdul as presents. Doing so will randomly give +1FP if your FP is below 10, and this can be done as many times as you like. If you have the requirement to do Bringing Abdul than this event is no longer available for him.
There is also a Game Console that can sometimes be bought from the merchant at the hotel. Giving this to Kakyoin will give you +3FP.
Abdul's Friend Marjawan
Requirements: Abdul is in the party
In the house with shovels in them above where you can find Polnareff in Aswan, there's an archaeologist named Marjawan. Talk to him with Abdul in the party for an event and FP.
Requirements: Joseph is in the party
Southeast of the inn, there's a show window with a TV. Investigate it for a short event with Joseph. If you haven't rescued Stroheim and Speedwagon, you'll get a hint about how to enter the ruins. Otherwise, he'll reminisce about an old friend of his. Afterwards, you'll get +1FP.
Requirements: Jotaro is in the party
If you talk to the man selling Teen Shouky in the southeast part of town with Jotaro in the party, he'll take an interest and buy some, restoring some of the party's HP/SP and raising Jotaro's FP.
Requirements: Iggy is in the party
South of the hospital is a man selling cotton T-shirts. Talk to him with Iggy in the party, and he'll notice and cloth handkerchief. Buy it for 1000G, and Iggy will gain FP and equip the Egyptian Handkerchief.
Requirements: Polnareff is in the party
Near Polnareff is a man selling papyrus for 1000G. Buying it will give you the same papyrus that's available in the souvenir shop. Choosing not to buy it with Polnareff in the party will trigger a short scene and raise Polnareff's FP.
What's up with Jotaro?
Requirements: Talk to Polnareff with Jotaro in the party, or vice-versa
When you talk to Polnareff or Jotaro with the other as a party member, they'll have a short conversation about something that happened on the way to Aswan. Afterwards, you'll gain FP with whichever one was in your party at the time.
This event begins a little differently depending on which story route you took.
If you didn't rescue Speedwagon and Stroheim: Near the entrance to the ruins on the west side of town, there's a beggar who's selling a key for 1000G. If your bad karma is above 2, you can steal it from him to get the key for free and get +2 bad karma. Head to the ruins entrance, and Gallahad (the man who accompanies you on the Submarine Route) will join the party. If you took the Submarine Route, he'll have gained 7 levels since the last time you saw him.
If you rescued Speedwagon and Stroheim: Northeast of the hotel, Speedwagon will be running hurriedly around town. Talk to him and you'll decide to investigate the ruins together. Since he already has the key, just head to the ruins entrance. Speedwagon will be 10 levels higher than the last time he was in your party.
Head through the underground path that the ruins entrance leads to. There's a secret path in between the first wall that leads past the zombies and straight to the ruins if you want to take a shortcut. Once you emerge on the other side of the river, head north to the ruins. If you rescued Speedwagon and Stroheim, you'll find Dire here, who will join the party. Proceed through the dungeon and defeat the two bosses to advance the storyline.
Caring for Kakyoin
Requirements: Kakyoin's FP is 10 or above
After defeating the boss of the ruins, you'll automatically be transported to the hospital. If your FP with Kakyoin is high enough, you can choose to stay at the hospital as his bodyguard. Choosing to stay with him will raise his FP by 1. This route will skip Kom Ombo and the Anubis fight, but you'll get a short original story route involving two Stardust Crusaders bosses who don't appear in the game normally.