1. Touching or looking at anyone or anything in lustful manner is Haram.
2. From Islamic perspective, homosexuality is Haram and one of the greater sins, hence any advancement which leads towards it is rendered unlawful. Other than that the permissible acts such as eating, walking, talking etc. remain permissible for all.
وَاللَّذَانِ يَأْتِيَانِهَا مِنكُمْ فَآذُوهُمَا فَإِن تَابَا وَأَصْلَحَا فَأَعْرِضُوا عَنْهُمَا إِنَّ اللَّهَ كَانَ تَوَّابًا رَّحِيمًا
And as for the two who are guilty of indecency from among you, give them both a punishment; then if they repent and amend, turn aside from them; surely Allah is Oft-returning (to mercy), the Merciful.(4:16)
وَلُوطًا إِذْ قَالَ لِقَوْمِهِۦٓ أَتَأْتُونَ ٱلْفَٰحِشَةَ مَا سَبَقَكُم بِهَا مِنْ أَحَدٍ مِّنَ ٱلْعَٰلَمِينَ
We also (sent) Lut: He said to his people: "Do ye commit lewdness such as no people in creation (ever) committed before you? For ye practise your lusts on men in preference to women : ye are indeed a people transgressing beyond bounds. And his people gave no answer but this: they said, "Drive them out of your city: these are indeed men who want to be clean and pure!" But we saved him and his family, except his wife: she was of those who legged behind. And we rained down on them a shower (of brimstone): Then see what was the end of those who indulged in sin and crime! (7:80)
Also you may refer below verses:
(26:165), (27:54) and (29:28)
Hadith:
Narrated Ibn 'Abbas: The Prophet cursed effeminate men; those men who are in the similitude (assume the manners of women) and those women who assume the manners of men, and he said, "Turn them out of your houses." The Prophet turned out such-and-such man, and 'Umar turned out such-and-such woman.
The Prophet (peace be upon him) said: A man should not look at the private parts of another man, and a woman should not look at the private parts of another woman. A man should not lie with another man without wearing lower garment under one cover; and a woman should not be lie with another woman without wearing lower garment under one cover.
"The Prophet (peace and blessings of Allah be upon him) said: 'There is nothing I fear for my ummah more than the deed of the people of Loot.'"